https://repositorio.upn.edu.pe/handle/11537/40602
https://repositorio.upn.edu.pe/handle/11537/40603
https://repositorio.upn.edu.pe/handle/11537/40604
https://repositorio.upn.edu.pe/handle/11537/40607
https://repositorio.upn.edu.pe/handle/11537/40612
https://repositorio.upn.edu.pe/handle/11537/40616
https://repositorio.upn.edu.pe/handle/11537/40617
https://repositorio.upn.edu.pe/handle/11537/40619
https://repositorio.upn.edu.pe/handle/11537/39520
https://repositorio.upn.edu.pe/handle/11537/39521
https://repositorio.upn.edu.pe/handle/11537/39526
https://repositorio.upn.edu.pe/handle/11537/39572
https://repositorio.upn.edu.pe/handle/11537/39582
https://repositorio.upn.edu.pe/handle/11537/40600
https://repositorio.upn.edu.pe/handle/11537/40605
https://repositorio.upn.edu.pe/handle/11537/40609
https://repositorio.upn.edu.pe/handle/11537/40608
https://repositorio.upn.edu.pe/handle/11537/40610
https://repositorio.upn.edu.pe/handle/11537/40618
https://repositorio.upn.edu.pe/handle/11537/40622
https://repositorio.upn.edu.pe/handle/11537/40624
https://repositorio.upn.edu.pe/handle/11537/40626
https://repositorio.upn.edu.pe/handle/11537/40627
https://repositorio.upn.edu.pe/handle/11537/39522
https://repositorio.upn.edu.pe/handle/11537/39527
https://repositorio.upn.edu.pe/handle/11537/39548
https://repositorio.upn.edu.pe/handle/11537/39552
https://repositorio.upn.edu.pe/handle/11537/39553
https://repositorio.upn.edu.pe/handle/11537/39558
https://repositorio.upn.edu.pe/handle/11537/39583
https://repositorio.upn.edu.pe/handle/11537/40606
https://repositorio.upn.edu.pe/handle/11537/40613
https://repositorio.upn.edu.pe/handle/11537/40614
https://repositorio.upn.edu.pe/handle/11537/40615
https://repositorio.upn.edu.pe/handle/11537/40623
https://repositorio.upn.edu.pe/handle/11537/40625
https://repositorio.upn.edu.pe/handle/11537/40628
https://repositorio.upn.edu.pe/handle/11537/40630
https://repositorio.upn.edu.pe/handle/11537/40631
https://repositorio.upn.edu.pe/handle/11537/40636
https://repositorio.upn.edu.pe/handle/11537/40645
https://repositorio.upn.edu.pe/handle/11537/40674
https://repositorio.upn.edu.pe/handle/11537/40681
https://repositorio.upn.edu.pe/handle/11537/40711
https://repositorio.upn.edu.pe/handle/11537/40712
https://repositorio.upn.edu.pe/handle/11537/40713
https://repositorio.upn.edu.pe/handle/11537/40719
https://repositorio.upn.edu.pe/handle/11537/39537
https://repositorio.upn.edu.pe/handle/11537/39564
https://repositorio.upn.edu.pe/handle/11537/39560
https://repositorio.upn.edu.pe/handle/11537/39581
https://repositorio.upn.edu.pe/handle/11537/39589
https://repositorio.upn.edu.pe/handle/11537/39738
https://repositorio.upn.edu.pe/handle/11537/40634
https://repositorio.upn.edu.pe/handle/11537/41398
https://repositorio.upn.edu.pe/handle/11537/41407
https://repositorio.upn.edu.pe/handle/11537/41408
https://repositorio.upn.edu.pe/handle/11537/41409
https://repositorio.upn.edu.pe/handle/11537/41410
https://repositorio.upn.edu.pe/handle/11537/40795
https://repositorio.upn.edu.pe/handle/11537/40797
https://repositorio.upn.edu.pe/handle/11537/40798
https://repositorio.upn.edu.pe/handle/11537/40799
https://repositorio.upn.edu.pe/handle/11537/40800
https://repositorio.upn.edu.pe/handle/11537/40801
https://repositorio.upn.edu.pe/handle/11537/39530
https://repositorio.upn.edu.pe/handle/11537/39574
https://repositorio.upn.edu.pe/handle/11537/39575
https://repositorio.upn.edu.pe/handle/11537/39585
https://repositorio.upn.edu.pe/handle/11537/40660
https://repositorio.upn.edu.pe/handle/11537/41215
https://repositorio.upn.edu.pe/handle/11537/41216
https://repositorio.upn.edu.pe/handle/11537/41220
https://repositorio.upn.edu.pe/handle/11537/41219
https://repositorio.upn.edu.pe/handle/11537/41225
https://repositorio.upn.edu.pe/handle/11537/41221
https://repositorio.upn.edu.pe/handle/11537/41223
https://repositorio.upn.edu.pe/handle/11537/41227
https://repositorio.upn.edu.pe/handle/11537/41228
https://repositorio.upn.edu.pe/handle/11537/41232
https://repositorio.upn.edu.pe/handle/11537/41236
https://repositorio.upn.edu.pe/handle/11537/39580
https://repositorio.upn.edu.pe/handle/11537/39584
https://repositorio.upn.edu.pe/handle/11537/39593
https://repositorio.upn.edu.pe/handle/11537/39597
https://repositorio.upn.edu.pe/handle/11537/39599
https://repositorio.upn.edu.pe/handle/11537/39753
https://repositorio.upn.edu.pe/handle/11537/41217
https://repositorio.upn.edu.pe/handle/11537/41222
https://repositorio.upn.edu.pe/handle/11537/41233
https://repositorio.upn.edu.pe/handle/11537/41238
https://repositorio.upn.edu.pe/handle/11537/41239
https://repositorio.upn.edu.pe/handle/11537/41399
https://repositorio.upn.edu.pe/handle/11537/41403
https://repositorio.upn.edu.pe/handle/11537/41414
https://repositorio.upn.edu.pe/handle/11537/39594
https://repositorio.upn.edu.pe/handle/11537/39598
https://repositorio.upn.edu.pe/handle/11537/39605
https://repositorio.upn.edu.pe/handle/11537/39614
https://repositorio.upn.edu.pe/handle/11537/39627
https://repositorio.upn.edu.pe/handle/11537/39629
https://repositorio.upn.edu.pe/handle/11537/39632
https://repositorio.upn.edu.pe/handle/11537/39635
https://repositorio.upn.edu.pe/handle/11537/39634
https://repositorio.upn.edu.pe/handle/11537/39640
https://repositorio.upn.edu.pe/handle/11537/41230
https://repositorio.upn.edu.pe/handle/11537/41234
https://repositorio.upn.edu.pe/handle/11537/41235
https://repositorio.upn.edu.pe/handle/11537/41237
https://repositorio.upn.edu.pe/handle/11537/41240
https://repositorio.upn.edu.pe/handle/11537/41344
https://repositorio.upn.edu.pe/handle/11537/41348
https://repositorio.upn.edu.pe/handle/11537/41349
https://repositorio.upn.edu.pe/handle/11537/41350
https://repositorio.upn.edu.pe/handle/11537/41351
https://repositorio.upn.edu.pe/handle/11537/39668
https://repositorio.upn.edu.pe/handle/11537/39686
https://repositorio.upn.edu.pe/handle/11537/41413
https://repositorio.upn.edu.pe/handle/11537/41421
https://repositorio.upn.edu.pe/handle/11537/41617
https://repositorio.upn.edu.pe/handle/11537/41622
https://repositorio.upn.edu.pe/handle/11537/39596
https://repositorio.upn.edu.pe/handle/11537/39623
https://repositorio.upn.edu.pe/handle/11537/39626
https://repositorio.upn.edu.pe/handle/11537/39631
https://repositorio.upn.edu.pe/handle/11537/39644
https://repositorio.upn.edu.pe/handle/11537/39712
https://repositorio.upn.edu.pe/handle/11537/39711
https://repositorio.upn.edu.pe/handle/11537/39718
https://repositorio.upn.edu.pe/handle/11537/39717
https://repositorio.upn.edu.pe/handle/11537/39720
https://repositorio.upn.edu.pe/handle/11537/39725
https://repositorio.upn.edu.pe/handle/11537/39729
https://repositorio.upn.edu.pe/handle/11537/39732
https://repositorio.upn.edu.pe/handle/11537/39736
https://repositorio.upn.edu.pe/handle/11537/39739
https://repositorio.upn.edu.pe/handle/11537/39601
https://repositorio.upn.edu.pe/handle/11537/39602
https://repositorio.upn.edu.pe/handle/11537/39603
https://repositorio.upn.edu.pe/handle/11537/39609
https://repositorio.upn.edu.pe/handle/11537/39610
https://repositorio.upn.edu.pe/handle/11537/39620
https://repositorio.upn.edu.pe/handle/11537/39622
https://repositorio.upn.edu.pe/handle/11537/39621
https://repositorio.upn.edu.pe/handle/11537/39628
https://repositorio.upn.edu.pe/handle/11537/39636
https://repositorio.upn.edu.pe/handle/11537/39642
https://repositorio.upn.edu.pe/handle/11537/41352
https://repositorio.upn.edu.pe/handle/11537/41353
https://repositorio.upn.edu.pe/handle/11537/39611
https://repositorio.upn.edu.pe/handle/11537/39613
https://repositorio.upn.edu.pe/handle/11537/39630
https://repositorio.upn.edu.pe/handle/11537/39633
https://repositorio.upn.edu.pe/handle/11537/39758
https://repositorio.upn.edu.pe/handle/11537/41341
https://repositorio.upn.edu.pe/handle/11537/41345
https://repositorio.upn.edu.pe/handle/11537/41354
https://repositorio.upn.edu.pe/handle/11537/41415
https://repositorio.upn.edu.pe/handle/11537/41418
https://repositorio.upn.edu.pe/handle/11537/41616
https://repositorio.upn.edu.pe/handle/11537/41624
https://repositorio.upn.edu.pe/handle/11537/41626
https://repositorio.upn.edu.pe/handle/11537/41797
https://repositorio.upn.edu.pe/handle/11537/39638
https://repositorio.upn.edu.pe/handle/11537/39639
https://repositorio.upn.edu.pe/handle/11537/41355
https://repositorio.upn.edu.pe/handle/11537/41356
https://repositorio.upn.edu.pe/handle/11537/41364
https://repositorio.upn.edu.pe/handle/11537/41416
https://repositorio.upn.edu.pe/handle/11537/41417
https://repositorio.upn.edu.pe/handle/11537/41419
https://repositorio.upn.edu.pe/handle/11537/41420
https://repositorio.upn.edu.pe/handle/11537/41618
https://repositorio.upn.edu.pe/handle/11537/41620
https://repositorio.upn.edu.pe/handle/11537/41640
https://repositorio.upn.edu.pe/handle/11537/41645
https://repositorio.upn.edu.pe/handle/11537/41641
https://repositorio.upn.edu.pe/handle/11537/41790
https://repositorio.upn.edu.pe/handle/11537/41800
https://repositorio.upn.edu.pe/handle/11537/41422
https://repositorio.upn.edu.pe/handle/11537/41612
https://repositorio.upn.edu.pe/handle/11537/41614
https://repositorio.upn.edu.pe/handle/11537/41615
https://repositorio.upn.edu.pe/handle/11537/41621
https://repositorio.upn.edu.pe/handle/11537/41638
https://repositorio.upn.edu.pe/handle/11537/41629
https://repositorio.upn.edu.pe/handle/11537/41630
https://repositorio.upn.edu.pe/handle/11537/41633
https://repositorio.upn.edu.pe/handle/11537/41637
https://repositorio.upn.edu.pe/handle/11537/41639
https://repositorio.upn.edu.pe/handle/11537/41642
https://repositorio.upn.edu.pe/handle/11537/41646
https://repositorio.upn.edu.pe/handle/11537/41643
https://repositorio.upn.edu.pe/handle/11537/41644
https://repositorio.upn.edu.pe/handle/11537/41649
https://repositorio.upn.edu.pe/handle/11537/41648
https://repositorio.upn.edu.pe/handle/11537/39643
https://repositorio.upn.edu.pe/handle/11537/39737
https://repositorio.upn.edu.pe/handle/11537/41346
https://repositorio.upn.edu.pe/handle/11537/41347
https://repositorio.upn.edu.pe/handle/11537/41610
https://repositorio.upn.edu.pe/handle/11537/41623
https://repositorio.upn.edu.pe/handle/11537/41628
https://repositorio.upn.edu.pe/handle/11537/41634
https://repositorio.upn.edu.pe/handle/11537/41632
https://repositorio.upn.edu.pe/handle/11537/41631
https://repositorio.upn.edu.pe/handle/11537/41635
https://repositorio.upn.edu.pe/handle/11537/41647
https://repositorio.upn.edu.pe/handle/11537/41650
https://repositorio.upn.edu.pe/handle/11537/41789
https://repositorio.upn.edu.pe/handle/11537/41792
https://repositorio.upn.edu.pe/handle/11537/41794
https://repositorio.upn.edu.pe/handle/11537/41798
https://repositorio.upn.edu.pe/handle/11537/41799
https://repositorio.upn.edu.pe/handle/11537/39649
https://repositorio.upn.edu.pe/handle/11537/39651
https://repositorio.upn.edu.pe/handle/11537/39652
https://repositorio.upn.edu.pe/handle/11537/39653
https://repositorio.upn.edu.pe/handle/11537/39662
https://repositorio.upn.edu.pe/handle/11537/39665
https://repositorio.upn.edu.pe/handle/11537/39663
https://repositorio.upn.edu.pe/handle/11537/39678
https://repositorio.upn.edu.pe/handle/11537/39676
https://repositorio.upn.edu.pe/handle/11537/39679
https://repositorio.upn.edu.pe/handle/11537/39680
https://repositorio.upn.edu.pe/handle/11537/39684
https://repositorio.upn.edu.pe/handle/11537/39719
https://repositorio.upn.edu.pe/handle/11537/39659
https://repositorio.upn.edu.pe/handle/11537/39660
https://repositorio.upn.edu.pe/handle/11537/39664
https://repositorio.upn.edu.pe/handle/11537/39666
https://repositorio.upn.edu.pe/handle/11537/39669
https://repositorio.upn.edu.pe/handle/11537/39671
https://repositorio.upn.edu.pe/handle/11537/39672
https://repositorio.upn.edu.pe/handle/11537/39673
https://repositorio.upn.edu.pe/handle/11537/39675
https://repositorio.upn.edu.pe/handle/11537/39677
https://repositorio.upn.edu.pe/handle/11537/39681
https://repositorio.upn.edu.pe/handle/11537/39685
https://repositorio.upn.edu.pe/handle/11537/39682
https://repositorio.upn.edu.pe/handle/11537/41423
https://repositorio.upn.edu.pe/handle/11537/41424
https://repositorio.upn.edu.pe/handle/11537/41425
https://repositorio.upn.edu.pe/handle/11537/41426
https://repositorio.upn.edu.pe/handle/11537/41428
https://repositorio.upn.edu.pe/handle/11537/41429
https://repositorio.upn.edu.pe/handle/11537/41430
https://repositorio.upn.edu.pe/handle/11537/41440
https://repositorio.upn.edu.pe/handle/11537/41441
https://repositorio.upn.edu.pe/handle/11537/41443
https://repositorio.upn.edu.pe/handle/11537/41449
https://repositorio.upn.edu.pe/handle/11537/41452
https://repositorio.upn.edu.pe/handle/11537/41453
https://repositorio.upn.edu.pe/handle/11537/41455
https://repositorio.upn.edu.pe/handle/11537/41462
https://repositorio.upn.edu.pe/handle/11537/41457
https://repositorio.upn.edu.pe/handle/11537/41458
https://repositorio.upn.edu.pe/handle/11537/41459
https://repositorio.upn.edu.pe/handle/11537/41460
https://repositorio.upn.edu.pe/handle/11537/41461
https://repositorio.upn.edu.pe/handle/11537/40637
https://repositorio.upn.edu.pe/handle/11537/41427
https://repositorio.upn.edu.pe/handle/11537/41442
https://repositorio.upn.edu.pe/handle/11537/41445
https://repositorio.upn.edu.pe/handle/11537/41446
https://repositorio.upn.edu.pe/handle/11537/41448
https://repositorio.upn.edu.pe/handle/11537/41450
https://repositorio.upn.edu.pe/handle/11537/41451
https://repositorio.upn.edu.pe/handle/11537/41454
https://repositorio.upn.edu.pe/handle/11537/41456
https://repositorio.upn.edu.pe/handle/11537/41471
https://repositorio.upn.edu.pe/handle/11537/41472
https://repositorio.upn.edu.pe/handle/11537/41474
https://repositorio.upn.edu.pe/handle/11537/41627
https://repositorio.upn.edu.pe/handle/11537/41652
https://repositorio.upn.edu.pe/handle/11537/41651
https://repositorio.upn.edu.pe/handle/11537/41801
https://repositorio.upn.edu.pe/handle/11537/39674
https://repositorio.upn.edu.pe/handle/11537/41431
https://repositorio.upn.edu.pe/handle/11537/41432
https://repositorio.upn.edu.pe/handle/11537/41433
https://repositorio.upn.edu.pe/handle/11537/41444
https://repositorio.upn.edu.pe/handle/11537/41447
https://repositorio.upn.edu.pe/handle/11537/41463
https://repositorio.upn.edu.pe/handle/11537/41465
https://repositorio.upn.edu.pe/handle/11537/41464
https://repositorio.upn.edu.pe/handle/11537/41466
https://repositorio.upn.edu.pe/handle/11537/41467
https://repositorio.upn.edu.pe/handle/11537/41473
https://repositorio.upn.edu.pe/handle/11537/41468
https://repositorio.upn.edu.pe/handle/11537/41469
https://repositorio.upn.edu.pe/handle/11537/41470
https://repositorio.upn.edu.pe/handle/11537/41796
https://repositorio.upn.edu.pe/handle/11537/41807
https://repositorio.upn.edu.pe/handle/11537/41809
https://repositorio.upn.edu.pe/handle/11537/41812
https://repositorio.upn.edu.pe/handle/11537/42045
https://repositorio.upn.edu.pe/handle/11537/39690
https://repositorio.upn.edu.pe/handle/11537/39708
https://repositorio.upn.edu.pe/handle/11537/41653
https://repositorio.upn.edu.pe/handle/11537/41654
https://repositorio.upn.edu.pe/handle/11537/41656
https://repositorio.upn.edu.pe/handle/11537/41658
https://repositorio.upn.edu.pe/handle/11537/41660
https://repositorio.upn.edu.pe/handle/11537/41661
https://repositorio.upn.edu.pe/handle/11537/41665
https://repositorio.upn.edu.pe/handle/11537/41664
https://repositorio.upn.edu.pe/handle/11537/41668
https://repositorio.upn.edu.pe/handle/11537/41669
https://repositorio.upn.edu.pe/handle/11537/41672
https://repositorio.upn.edu.pe/handle/11537/41670
https://repositorio.upn.edu.pe/handle/11537/41671
https://repositorio.upn.edu.pe/handle/11537/41674
https://repositorio.upn.edu.pe/handle/11537/41434
https://repositorio.upn.edu.pe/handle/11537/41475
https://repositorio.upn.edu.pe/handle/11537/41476
https://repositorio.upn.edu.pe/handle/11537/41477
https://repositorio.upn.edu.pe/handle/11537/41479
https://repositorio.upn.edu.pe/handle/11537/41481
https://repositorio.upn.edu.pe/handle/11537/41482
https://repositorio.upn.edu.pe/handle/11537/41483
https://repositorio.upn.edu.pe/handle/11537/41486
https://repositorio.upn.edu.pe/handle/11537/41487
https://repositorio.upn.edu.pe/handle/11537/41488
https://repositorio.upn.edu.pe/handle/11537/41489
https://repositorio.upn.edu.pe/handle/11537/41490
https://repositorio.upn.edu.pe/handle/11537/41492
https://repositorio.upn.edu.pe/handle/11537/41491
https://repositorio.upn.edu.pe/handle/11537/41494
https://repositorio.upn.edu.pe/handle/11537/41497
https://repositorio.upn.edu.pe/handle/11537/41495
https://repositorio.upn.edu.pe/handle/11537/41498
https://repositorio.upn.edu.pe/handle/11537/39693
https://repositorio.upn.edu.pe/handle/11537/39695
https://repositorio.upn.edu.pe/handle/11537/39702
https://repositorio.upn.edu.pe/handle/11537/39707
https://repositorio.upn.edu.pe/handle/11537/39706
https://repositorio.upn.edu.pe/handle/11537/39751
https://repositorio.upn.edu.pe/handle/11537/39755
https://repositorio.upn.edu.pe/handle/11537/41480
https://repositorio.upn.edu.pe/handle/11537/41484
https://repositorio.upn.edu.pe/handle/11537/41496
https://repositorio.upn.edu.pe/handle/11537/41504
https://repositorio.upn.edu.pe/handle/11537/41505
https://repositorio.upn.edu.pe/handle/11537/41509
https://repositorio.upn.edu.pe/handle/11537/41520
https://repositorio.upn.edu.pe/handle/11537/41527
https://repositorio.upn.edu.pe/handle/11537/41655
https://repositorio.upn.edu.pe/handle/11537/41657
https://repositorio.upn.edu.pe/handle/11537/41662
https://repositorio.upn.edu.pe/handle/11537/41663
https://repositorio.upn.edu.pe/handle/11537/41673
https://repositorio.upn.edu.pe/handle/11537/39698
https://repositorio.upn.edu.pe/handle/11537/39699
https://repositorio.upn.edu.pe/handle/11537/39700
https://repositorio.upn.edu.pe/handle/11537/39705
https://repositorio.upn.edu.pe/handle/11537/39709
https://repositorio.upn.edu.pe/handle/11537/39723
https://repositorio.upn.edu.pe/handle/11537/39726
https://repositorio.upn.edu.pe/handle/11537/39734
https://repositorio.upn.edu.pe/handle/11537/39743
https://repositorio.upn.edu.pe/handle/11537/39744
https://repositorio.upn.edu.pe/handle/11537/39747
https://repositorio.upn.edu.pe/handle/11537/41435
https://repositorio.upn.edu.pe/handle/11537/41478
https://repositorio.upn.edu.pe/handle/11537/41485
https://repositorio.upn.edu.pe/handle/11537/41493
https://repositorio.upn.edu.pe/handle/11537/41499
https://repositorio.upn.edu.pe/handle/11537/39713
https://repositorio.upn.edu.pe/handle/11537/39722
https://repositorio.upn.edu.pe/handle/11537/39714
https://repositorio.upn.edu.pe/handle/11537/39715
https://repositorio.upn.edu.pe/handle/11537/39716
https://repositorio.upn.edu.pe/handle/11537/39721
https://repositorio.upn.edu.pe/handle/11537/39727
https://repositorio.upn.edu.pe/handle/11537/39733
https://repositorio.upn.edu.pe/handle/11537/39745
https://repositorio.upn.edu.pe/handle/11537/41507
https://repositorio.upn.edu.pe/handle/11537/41515
https://repositorio.upn.edu.pe/handle/11537/41659
https://repositorio.upn.edu.pe/handle/11537/41666
https://repositorio.upn.edu.pe/handle/11537/41667
https://repositorio.upn.edu.pe/handle/11537/41680
https://repositorio.upn.edu.pe/handle/11537/41688
https://repositorio.upn.edu.pe/handle/11537/41692
https://repositorio.upn.edu.pe/handle/11537/40769
https://repositorio.upn.edu.pe/handle/11537/40770
https://repositorio.upn.edu.pe/handle/11537/40771
https://repositorio.upn.edu.pe/handle/11537/40772
https://repositorio.upn.edu.pe/handle/11537/39735
https://repositorio.upn.edu.pe/handle/11537/41500
https://repositorio.upn.edu.pe/handle/11537/41501
https://repositorio.upn.edu.pe/handle/11537/41503
https://repositorio.upn.edu.pe/handle/11537/41502
https://repositorio.upn.edu.pe/handle/11537/41508
https://repositorio.upn.edu.pe/handle/11537/41511
https://repositorio.upn.edu.pe/handle/11537/41512
https://repositorio.upn.edu.pe/handle/11537/41513
https://repositorio.upn.edu.pe/handle/11537/41516
https://repositorio.upn.edu.pe/handle/11537/41519
https://repositorio.upn.edu.pe/handle/11537/41518
https://repositorio.upn.edu.pe/handle/11537/41521
https://repositorio.upn.edu.pe/handle/11537/41522
https://repositorio.upn.edu.pe/handle/11537/41523
https://repositorio.upn.edu.pe/handle/11537/41524
https://repositorio.upn.edu.pe/handle/11537/41526
https://repositorio.upn.edu.pe/handle/11537/41530
https://repositorio.upn.edu.pe/handle/11537/41528
https://repositorio.upn.edu.pe/handle/11537/41529
https://repositorio.upn.edu.pe/handle/11537/41531
https://repositorio.upn.edu.pe/handle/11537/39724
https://repositorio.upn.edu.pe/handle/11537/39728
https://repositorio.upn.edu.pe/handle/11537/39741
https://repositorio.upn.edu.pe/handle/11537/39746