@book{17279,
	author = {Chavez Castro, Oscar Javier  and Betancourt Vargas, Gilberto de Jesús  and   },
	title = {Servinta :},
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2018.},
	address = {Bogotá (Colombia) :},
	edition = {                   },
	url = {https://drive.google.com/open?id=1u4C0nuxJhGY5xXPjig102ghz2kgQUSuq}
}