div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=portada-55cc128eb6d87htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Portada loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentscoreader035viewer202207190855cc128cbb61eb84648b4855html5thumbnails1jpg width=140 height=200 divpDarling Beatriz Zun LancerioUniversidad Mariano Gálvezp p2015p p…p pMETODOLOGÍAp pDEINVESTIGACIÓNp pLApdiv