URL List

https://repositorio.upn.edu.pe/handle/11537/42311
https://repositorio.upn.edu.pe/handle/11537/42403
https://repositorio.upn.edu.pe/handle/11537/42404
https://repositorio.upn.edu.pe/handle/11537/42405
https://repositorio.upn.edu.pe/handle/11537/42406
https://repositorio.upn.edu.pe/handle/11537/42607
https://repositorio.upn.edu.pe/handle/11537/42576
https://repositorio.upn.edu.pe/handle/11537/42580
https://repositorio.upn.edu.pe/handle/11537/42583
https://repositorio.upn.edu.pe/handle/11537/42600
https://repositorio.upn.edu.pe/handle/11537/42613
https://repositorio.upn.edu.pe/handle/11537/42309
https://repositorio.upn.edu.pe/handle/11537/42407
https://repositorio.upn.edu.pe/handle/11537/42718
https://repositorio.upn.edu.pe/handle/11537/42720
https://repositorio.upn.edu.pe/handle/11537/42721
https://repositorio.upn.edu.pe/handle/11537/42724
https://repositorio.upn.edu.pe/handle/11537/42725
https://repositorio.upn.edu.pe/handle/11537/42726
https://repositorio.upn.edu.pe/handle/11537/42727
https://repositorio.upn.edu.pe/handle/11537/40824
https://repositorio.upn.edu.pe/handle/11537/40825
https://repositorio.upn.edu.pe/handle/11537/42719
https://repositorio.upn.edu.pe/handle/11537/42722
https://repositorio.upn.edu.pe/handle/11537/42723
https://repositorio.upn.edu.pe/handle/11537/42728
https://repositorio.upn.edu.pe/handle/11537/42734
https://repositorio.upn.edu.pe/handle/11537/42714
https://repositorio.upn.edu.pe/handle/11537/42634
https://repositorio.upn.edu.pe/handle/11537/42636
https://repositorio.upn.edu.pe/handle/11537/42637
https://repositorio.upn.edu.pe/handle/11537/42638
https://repositorio.upn.edu.pe/handle/11537/42639
https://repositorio.upn.edu.pe/handle/11537/42640
https://repositorio.upn.edu.pe/handle/11537/42641
https://repositorio.upn.edu.pe/handle/11537/42644
https://repositorio.upn.edu.pe/handle/11537/42646
https://repositorio.upn.edu.pe/handle/11537/42647
https://repositorio.upn.edu.pe/handle/11537/42650
https://repositorio.upn.edu.pe/handle/11537/42652
https://repositorio.upn.edu.pe/handle/11537/42653
https://repositorio.upn.edu.pe/handle/11537/42654
https://repositorio.upn.edu.pe/handle/11537/42655
https://repositorio.upn.edu.pe/handle/11537/42656
https://repositorio.upn.edu.pe/handle/11537/42657
https://repositorio.upn.edu.pe/handle/11537/42658
https://repositorio.upn.edu.pe/handle/11537/42408
https://repositorio.upn.edu.pe/handle/11537/42427
https://repositorio.upn.edu.pe/handle/11537/42409
https://repositorio.upn.edu.pe/handle/11537/42410
https://repositorio.upn.edu.pe/handle/11537/42428
https://repositorio.upn.edu.pe/handle/11537/42411
https://repositorio.upn.edu.pe/handle/11537/42412
https://repositorio.upn.edu.pe/handle/11537/42414
https://repositorio.upn.edu.pe/handle/11537/42413
https://repositorio.upn.edu.pe/handle/11537/42431
https://repositorio.upn.edu.pe/handle/11537/42415
https://repositorio.upn.edu.pe/handle/11537/42416
https://repositorio.upn.edu.pe/handle/11537/42417
https://repositorio.upn.edu.pe/handle/11537/42418
https://repositorio.upn.edu.pe/handle/11537/42419
https://repositorio.upn.edu.pe/handle/11537/42420
https://repositorio.upn.edu.pe/handle/11537/42433
https://repositorio.upn.edu.pe/handle/11537/42423
https://repositorio.upn.edu.pe/handle/11537/42436
https://repositorio.upn.edu.pe/handle/11537/42430
https://repositorio.upn.edu.pe/handle/11537/42432
https://repositorio.upn.edu.pe/handle/11537/42434
https://repositorio.upn.edu.pe/handle/11537/42435
https://repositorio.upn.edu.pe/handle/11537/42425
https://repositorio.upn.edu.pe/handle/11537/42424
https://repositorio.upn.edu.pe/handle/11537/42426
https://repositorio.upn.edu.pe/handle/11537/42437
https://repositorio.upn.edu.pe/handle/11537/42596
https://repositorio.upn.edu.pe/handle/11537/42597
https://repositorio.upn.edu.pe/handle/11537/42622
https://repositorio.upn.edu.pe/handle/11537/42625
https://repositorio.upn.edu.pe/handle/11537/42648
https://repositorio.upn.edu.pe/handle/11537/42429
https://repositorio.upn.edu.pe/handle/11537/42421
https://repositorio.upn.edu.pe/handle/11537/42422
https://repositorio.upn.edu.pe/handle/11537/42643
https://repositorio.upn.edu.pe/handle/11537/42645
https://repositorio.upn.edu.pe/handle/11537/42701
https://repositorio.upn.edu.pe/handle/11537/42615
https://repositorio.upn.edu.pe/handle/11537/42617
https://repositorio.upn.edu.pe/handle/11537/42599
https://repositorio.upn.edu.pe/handle/11537/42611
https://repositorio.upn.edu.pe/handle/11537/42604
https://repositorio.upn.edu.pe/handle/11537/42619
https://repositorio.upn.edu.pe/handle/11537/42606
https://repositorio.upn.edu.pe/handle/11537/42609
https://repositorio.upn.edu.pe/handle/11537/42616
https://repositorio.upn.edu.pe/handle/11537/42618
https://repositorio.upn.edu.pe/handle/11537/42621
https://repositorio.upn.edu.pe/handle/11537/42438
https://repositorio.upn.edu.pe/handle/11537/42439
https://repositorio.upn.edu.pe/handle/11537/42440
https://repositorio.upn.edu.pe/handle/11537/42441
https://repositorio.upn.edu.pe/handle/11537/42442
https://repositorio.upn.edu.pe/handle/11537/42443
https://repositorio.upn.edu.pe/handle/11537/42593
https://repositorio.upn.edu.pe/handle/11537/42603
https://repositorio.upn.edu.pe/handle/11537/42729
https://repositorio.upn.edu.pe/handle/11537/42522
https://repositorio.upn.edu.pe/handle/11537/42529
https://repositorio.upn.edu.pe/handle/11537/42532
https://repositorio.upn.edu.pe/handle/11537/42534
https://repositorio.upn.edu.pe/handle/11537/42456
https://repositorio.upn.edu.pe/handle/11537/42457
https://repositorio.upn.edu.pe/handle/11537/42476
https://repositorio.upn.edu.pe/handle/11537/42614
https://repositorio.upn.edu.pe/handle/11537/42594
https://repositorio.upn.edu.pe/handle/11537/42601
https://repositorio.upn.edu.pe/handle/11537/42605
https://repositorio.upn.edu.pe/handle/11537/42620
https://repositorio.upn.edu.pe/handle/11537/42623
https://repositorio.upn.edu.pe/handle/11537/42659
https://repositorio.upn.edu.pe/handle/11537/42661
https://repositorio.upn.edu.pe/handle/11537/42662
https://repositorio.upn.edu.pe/handle/11537/42663
https://repositorio.upn.edu.pe/handle/11537/42664
https://repositorio.upn.edu.pe/handle/11537/42665
https://repositorio.upn.edu.pe/handle/11537/42444
https://repositorio.upn.edu.pe/handle/11537/42445
https://repositorio.upn.edu.pe/handle/11537/42446
https://repositorio.upn.edu.pe/handle/11537/42448
https://repositorio.upn.edu.pe/handle/11537/42471
https://repositorio.upn.edu.pe/handle/11537/42447
https://repositorio.upn.edu.pe/handle/11537/42474
https://repositorio.upn.edu.pe/handle/11537/42449
https://repositorio.upn.edu.pe/handle/11537/42451
https://repositorio.upn.edu.pe/handle/11537/42452
https://repositorio.upn.edu.pe/handle/11537/42453
https://repositorio.upn.edu.pe/handle/11537/42454
https://repositorio.upn.edu.pe/handle/11537/42455
https://repositorio.upn.edu.pe/handle/11537/42458
https://repositorio.upn.edu.pe/handle/11537/42479
https://repositorio.upn.edu.pe/handle/11537/42461
https://repositorio.upn.edu.pe/handle/11537/42462
https://repositorio.upn.edu.pe/handle/11537/42481
https://repositorio.upn.edu.pe/handle/11537/42472
https://repositorio.upn.edu.pe/handle/11537/42475
https://repositorio.upn.edu.pe/handle/11537/42478
https://repositorio.upn.edu.pe/handle/11537/42459
https://repositorio.upn.edu.pe/handle/11537/42460
https://repositorio.upn.edu.pe/handle/11537/42466
https://repositorio.upn.edu.pe/handle/11537/42497
https://repositorio.upn.edu.pe/handle/11537/42496
https://repositorio.upn.edu.pe/handle/11537/42498
https://repositorio.upn.edu.pe/handle/11537/42626
https://repositorio.upn.edu.pe/handle/11537/42730
https://repositorio.upn.edu.pe/handle/11537/42731
https://repositorio.upn.edu.pe/handle/11537/42703
https://repositorio.upn.edu.pe/handle/11537/42484
https://repositorio.upn.edu.pe/handle/11537/42463
https://repositorio.upn.edu.pe/handle/11537/42485
https://repositorio.upn.edu.pe/handle/11537/42486
https://repositorio.upn.edu.pe/handle/11537/42488
https://repositorio.upn.edu.pe/handle/11537/42473
https://repositorio.upn.edu.pe/handle/11537/42477
https://repositorio.upn.edu.pe/handle/11537/42483
https://repositorio.upn.edu.pe/handle/11537/42482
https://repositorio.upn.edu.pe/handle/11537/42490
https://repositorio.upn.edu.pe/handle/11537/42487
https://repositorio.upn.edu.pe/handle/11537/42489
https://repositorio.upn.edu.pe/handle/11537/42491
https://repositorio.upn.edu.pe/handle/11537/42450
https://repositorio.upn.edu.pe/handle/11537/42464
https://repositorio.upn.edu.pe/handle/11537/42465
https://repositorio.upn.edu.pe/handle/11537/42467
https://repositorio.upn.edu.pe/handle/11537/42468
https://repositorio.upn.edu.pe/handle/11537/42470
https://repositorio.upn.edu.pe/handle/11537/42469
https://repositorio.upn.edu.pe/handle/11537/42624
https://repositorio.upn.edu.pe/handle/11537/42735
https://repositorio.upn.edu.pe/handle/11537/42736
https://repositorio.upn.edu.pe/handle/11537/42499
https://repositorio.upn.edu.pe/handle/11537/42732
https://repositorio.upn.edu.pe/handle/11537/42733
https://repositorio.upn.edu.pe/handle/11537/42557
https://repositorio.upn.edu.pe/handle/11537/42559
https://repositorio.upn.edu.pe/handle/11537/42492
https://repositorio.upn.edu.pe/handle/11537/42494
https://repositorio.upn.edu.pe/handle/11537/42493
https://repositorio.upn.edu.pe/handle/11537/42500
https://repositorio.upn.edu.pe/handle/11537/42501
https://repositorio.upn.edu.pe/handle/11537/42502
https://repositorio.upn.edu.pe/handle/11537/42504
https://repositorio.upn.edu.pe/handle/11537/42507
https://repositorio.upn.edu.pe/handle/11537/42508
https://repositorio.upn.edu.pe/handle/11537/42509
https://repositorio.upn.edu.pe/handle/11537/42510
https://repositorio.upn.edu.pe/handle/11537/42511
https://repositorio.upn.edu.pe/handle/11537/42512
https://repositorio.upn.edu.pe/handle/11537/42513
https://repositorio.upn.edu.pe/handle/11537/42548
https://repositorio.upn.edu.pe/handle/11537/42516
https://repositorio.upn.edu.pe/handle/11537/42514
https://repositorio.upn.edu.pe/handle/11537/42515
https://repositorio.upn.edu.pe/handle/11537/42495
https://repositorio.upn.edu.pe/handle/11537/40828
https://repositorio.upn.edu.pe/handle/11537/40826
https://repositorio.upn.edu.pe/handle/11537/40827
https://repositorio.upn.edu.pe/handle/11537/40829
https://repositorio.upn.edu.pe/handle/11537/40830
https://repositorio.upn.edu.pe/handle/11537/40831
https://repositorio.upn.edu.pe/handle/11537/40832
https://repositorio.upn.edu.pe/handle/11537/40835
https://repositorio.upn.edu.pe/handle/11537/40834
https://repositorio.upn.edu.pe/handle/11537/40837
https://repositorio.upn.edu.pe/handle/11537/40853
https://repositorio.upn.edu.pe/handle/11537/40833
https://repositorio.upn.edu.pe/handle/11537/40836
https://repositorio.upn.edu.pe/handle/11537/40839
https://repositorio.upn.edu.pe/handle/11537/40838
https://repositorio.upn.edu.pe/handle/11537/40840
https://repositorio.upn.edu.pe/handle/11537/40841
https://repositorio.upn.edu.pe/handle/11537/40842
https://repositorio.upn.edu.pe/handle/11537/40844
https://repositorio.upn.edu.pe/handle/11537/40863
https://repositorio.upn.edu.pe/handle/11537/40866
https://repositorio.upn.edu.pe/handle/11537/40867
https://repositorio.upn.edu.pe/handle/11537/40843
https://repositorio.upn.edu.pe/handle/11537/42503
https://repositorio.upn.edu.pe/handle/11537/42505
https://repositorio.upn.edu.pe/handle/11537/42506
https://repositorio.upn.edu.pe/handle/11537/42517
https://repositorio.upn.edu.pe/handle/11537/42518
https://repositorio.upn.edu.pe/handle/11537/42526
https://repositorio.upn.edu.pe/handle/11537/42525
https://repositorio.upn.edu.pe/handle/11537/42538
https://repositorio.upn.edu.pe/handle/11537/42537
https://repositorio.upn.edu.pe/handle/11537/42553
https://repositorio.upn.edu.pe/handle/11537/42540
https://repositorio.upn.edu.pe/handle/11537/42544
https://repositorio.upn.edu.pe/handle/11537/42546
https://repositorio.upn.edu.pe/handle/11537/42547
https://repositorio.upn.edu.pe/handle/11537/42558
https://repositorio.upn.edu.pe/handle/11537/42702
https://repositorio.upn.edu.pe/handle/11537/42706
https://repositorio.upn.edu.pe/handle/11537/42519
https://repositorio.upn.edu.pe/handle/11537/42549
https://repositorio.upn.edu.pe/handle/11537/42520
https://repositorio.upn.edu.pe/handle/11537/42521
https://repositorio.upn.edu.pe/handle/11537/42524
https://repositorio.upn.edu.pe/handle/11537/42550
https://repositorio.upn.edu.pe/handle/11537/42535
https://repositorio.upn.edu.pe/handle/11537/42531
https://repositorio.upn.edu.pe/handle/11537/42551
https://repositorio.upn.edu.pe/handle/11537/42533
https://repositorio.upn.edu.pe/handle/11537/42552
https://repositorio.upn.edu.pe/handle/11537/42536
https://repositorio.upn.edu.pe/handle/11537/42541
https://repositorio.upn.edu.pe/handle/11537/42543
https://repositorio.upn.edu.pe/handle/11537/42542
https://repositorio.upn.edu.pe/handle/11537/42545
https://repositorio.upn.edu.pe/handle/11537/42554
https://repositorio.upn.edu.pe/handle/11537/42555
https://repositorio.upn.edu.pe/handle/11537/42556
https://repositorio.upn.edu.pe/handle/11537/42738
https://repositorio.upn.edu.pe/handle/11537/42704
https://repositorio.upn.edu.pe/handle/11537/42707
https://repositorio.upn.edu.pe/handle/11537/42711
https://repositorio.upn.edu.pe/handle/11537/42712
https://repositorio.upn.edu.pe/handle/11537/42713
https://repositorio.upn.edu.pe/handle/11537/42690
https://repositorio.upn.edu.pe/handle/11537/42691
https://repositorio.upn.edu.pe/handle/11537/40845
https://repositorio.upn.edu.pe/handle/11537/40846
https://repositorio.upn.edu.pe/handle/11537/40847
https://repositorio.upn.edu.pe/handle/11537/40848
https://repositorio.upn.edu.pe/handle/11537/40849
https://repositorio.upn.edu.pe/handle/11537/40851
https://repositorio.upn.edu.pe/handle/11537/40854
https://repositorio.upn.edu.pe/handle/11537/40855
https://repositorio.upn.edu.pe/handle/11537/40857
https://repositorio.upn.edu.pe/handle/11537/40858
https://repositorio.upn.edu.pe/handle/11537/40859
https://repositorio.upn.edu.pe/handle/11537/40865
https://repositorio.upn.edu.pe/handle/11537/42693
https://repositorio.upn.edu.pe/handle/11537/42694
https://repositorio.upn.edu.pe/handle/11537/42695
https://repositorio.upn.edu.pe/handle/11537/42708
https://repositorio.upn.edu.pe/handle/11537/42696
https://repositorio.upn.edu.pe/handle/11537/42698
https://repositorio.upn.edu.pe/handle/11537/42697
https://repositorio.upn.edu.pe/handle/11537/42709
https://repositorio.upn.edu.pe/handle/11537/42700
https://repositorio.upn.edu.pe/handle/11537/42699
https://repositorio.upn.edu.pe/handle/11537/40850
https://repositorio.upn.edu.pe/handle/11537/40852
https://repositorio.upn.edu.pe/handle/11537/40869
https://repositorio.upn.edu.pe/handle/11537/42705
https://repositorio.upn.edu.pe/handle/11537/40856
https://repositorio.upn.edu.pe/handle/11537/40860
https://repositorio.upn.edu.pe/handle/11537/40862
https://repositorio.upn.edu.pe/handle/11537/40864
https://repositorio.upn.edu.pe/handle/11537/42523
https://repositorio.upn.edu.pe/handle/11537/42528
https://repositorio.upn.edu.pe/handle/11537/42527
https://repositorio.upn.edu.pe/handle/11537/42530
https://repositorio.upn.edu.pe/handle/11537/42539
https://repositorio.upn.edu.pe/handle/11537/40861
https://repositorio.upn.edu.pe/handle/11537/40868
https://repositorio.upn.edu.pe/handle/11537/42692
https://repositorio.upn.edu.pe/handle/11537/42710
https://repositorio.upn.edu.pe/handle/11537/42715
https://repositorio.upn.edu.pe/handle/11537/42716
https://repositorio.upn.edu.pe/handle/11537/42717
https://repositorio.upn.edu.pe/handle/11537/42739
https://repositorio.upn.edu.pe/handle/11537/42740
https://repositorio.upn.edu.pe/handle/11537/42742
https://repositorio.upn.edu.pe/handle/11537/42743
https://repositorio.upn.edu.pe/handle/11537/42744
https://repositorio.upn.edu.pe/handle/11537/42746
https://repositorio.upn.edu.pe/handle/11537/42747
https://repositorio.upn.edu.pe/handle/11537/42748
https://repositorio.upn.edu.pe/handle/11537/42751
https://repositorio.upn.edu.pe/handle/11537/42753
https://repositorio.upn.edu.pe/handle/11537/42752
https://repositorio.upn.edu.pe/handle/11537/42754
https://repositorio.upn.edu.pe/handle/11537/42757
https://repositorio.upn.edu.pe/handle/11537/42761
https://repositorio.upn.edu.pe/handle/11537/42758
https://repositorio.upn.edu.pe/handle/11537/42760
https://repositorio.upn.edu.pe/handle/11537/42762
https://repositorio.upn.edu.pe/handle/11537/42763
https://repositorio.upn.edu.pe/handle/11537/42766
https://repositorio.upn.edu.pe/handle/11537/42771
https://repositorio.upn.edu.pe/handle/11537/42745
https://repositorio.upn.edu.pe/handle/11537/42749
https://repositorio.upn.edu.pe/handle/11537/42750
https://repositorio.upn.edu.pe/handle/11537/42756
https://repositorio.upn.edu.pe/handle/11537/42759
https://repositorio.upn.edu.pe/handle/11537/42772
https://repositorio.upn.edu.pe/handle/11537/42778
https://repositorio.upn.edu.pe/handle/11537/42777
https://repositorio.upn.edu.pe/handle/11537/42755
https://repositorio.upn.edu.pe/handle/11537/42764
https://repositorio.upn.edu.pe/handle/11537/42767
https://repositorio.upn.edu.pe/handle/11537/42765
https://repositorio.upn.edu.pe/handle/11537/42768
https://repositorio.upn.edu.pe/handle/11537/42774
https://repositorio.upn.edu.pe/handle/11537/42773
https://repositorio.upn.edu.pe/handle/11537/42770
https://repositorio.upn.edu.pe/handle/11537/42775
https://repositorio.upn.edu.pe/handle/11537/42776
https://repositorio.upn.edu.pe/handle/11537/42779
https://repositorio.upn.edu.pe/handle/11537/42780
https://repositorio.upn.edu.pe/handle/11537/42784
https://repositorio.upn.edu.pe/handle/11537/42781
https://repositorio.upn.edu.pe/handle/11537/42782
https://repositorio.upn.edu.pe/handle/11537/42783
https://repositorio.upn.edu.pe/handle/11537/42785
https://repositorio.upn.edu.pe/handle/11537/42786
https://repositorio.upn.edu.pe/handle/11537/42769
https://repositorio.upn.edu.pe/handle/11537/42787
https://repositorio.upn.edu.pe/handle/11537/42788
https://repositorio.upn.edu.pe/handle/11537/42789
https://repositorio.upn.edu.pe/handle/11537/42790
https://repositorio.upn.edu.pe/handle/11537/42791
https://repositorio.upn.edu.pe/handle/11537/42793
https://repositorio.upn.edu.pe/handle/11537/42794
https://repositorio.upn.edu.pe/handle/11537/42797
https://repositorio.upn.edu.pe/handle/11537/42801
https://repositorio.upn.edu.pe/handle/11537/42800
https://repositorio.upn.edu.pe/handle/11537/42803
https://repositorio.upn.edu.pe/handle/11537/42804
https://repositorio.upn.edu.pe/handle/11537/42805
https://repositorio.upn.edu.pe/handle/11537/42806
https://repositorio.upn.edu.pe/handle/11537/42807
https://repositorio.upn.edu.pe/handle/11537/42809
https://repositorio.upn.edu.pe/handle/11537/42813
https://repositorio.upn.edu.pe/handle/11537/42817
https://repositorio.upn.edu.pe/handle/11537/42795
https://repositorio.upn.edu.pe/handle/11537/42798
https://repositorio.upn.edu.pe/handle/11537/42808
https://repositorio.upn.edu.pe/handle/11537/42829
https://repositorio.upn.edu.pe/handle/11537/42810
https://repositorio.upn.edu.pe/handle/11537/42812
https://repositorio.upn.edu.pe/handle/11537/42811
https://repositorio.upn.edu.pe/handle/11537/42814
https://repositorio.upn.edu.pe/handle/11537/42815
https://repositorio.upn.edu.pe/handle/11537/42816
https://repositorio.upn.edu.pe/handle/11537/42818
https://repositorio.upn.edu.pe/handle/11537/42821
https://repositorio.upn.edu.pe/handle/11537/42826
https://repositorio.upn.edu.pe/handle/11537/42792
https://repositorio.upn.edu.pe/handle/11537/42796
https://repositorio.upn.edu.pe/handle/11537/42799
https://repositorio.upn.edu.pe/handle/11537/42802
https://repositorio.upn.edu.pe/handle/11537/42830
https://repositorio.upn.edu.pe/handle/11537/42824
https://repositorio.upn.edu.pe/handle/11537/42823
https://repositorio.upn.edu.pe/handle/11537/42825
https://repositorio.upn.edu.pe/handle/11537/42833
https://repositorio.upn.edu.pe/handle/11537/42836
https://repositorio.upn.edu.pe/handle/11537/42844
https://repositorio.upn.edu.pe/handle/11537/42820
https://repositorio.upn.edu.pe/handle/11537/42819
https://repositorio.upn.edu.pe/handle/11537/42822
https://repositorio.upn.edu.pe/handle/11537/42827
https://repositorio.upn.edu.pe/handle/11537/42828
https://repositorio.upn.edu.pe/handle/11537/42831
https://repositorio.upn.edu.pe/handle/11537/42832
https://repositorio.upn.edu.pe/handle/11537/42842
https://repositorio.upn.edu.pe/handle/11537/42834
https://repositorio.upn.edu.pe/handle/11537/42843
https://repositorio.upn.edu.pe/handle/11537/42835
https://repositorio.upn.edu.pe/handle/11537/42837
https://repositorio.upn.edu.pe/handle/11537/42838
https://repositorio.upn.edu.pe/handle/11537/42839
https://repositorio.upn.edu.pe/handle/11537/42840