@book{17548,
	author = {Gúzman Vargas, Yenni Lorena and Durán Contreras, Valentina and   },
	title = {Valulo S.A.S /},
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2018.},
	address = {Bogotá (Colombia) :},
	edition = {                   },
	url = {https://drive.google.com/open?id=18hTONt3lnKkJ7kP-nGm1To06Ikyzlneh}
}