@book{17303,
	author = {Sanchez Otavo, José and Vinasco Bernal, David},
	title = {CANFRIEND / },
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2019.},
	address = {Bogotá (Colombia) :},
	url = {https://drive.google.com/open?id=101yfCBc51l5xMHU7fhHwsEKS1YJGuY0h}
}