@book{17185,
	author = {Acuña Chavarro, Luis Alfonso and Prieto Poveda, Jeimy Camila              and   },
	title = {GSA Service Group S.A.S /},
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2018.},
	address = {Bogotá (Colombia) :},
	edition = {                   },
	url = {https://drive.google.com/open?id=1HI6uqRf-49HpEOjmICm2dhTjGjUVz_N7}
}