@book{15503, author = {Guardado Henríquez, Moisés Alejandro and Marroquín Martínez, Alex David}, title = {Examen de grado : }, publisher = {[s.n.],}, year = {2020}, address = {San Miguel:}, note = {Incluye Cd-Roms}, url = {https://ugbedu-my.sharepoint.com/:b:/g/personal/biblioteca_ugb_edu_sv/EYYK2DmRjcpGh4L4k4KwcqcBdS68m5ul3Ok3kUeydKukgA?e=LkFrK7} }