@book{21550,
	author = {González Chaparro, Andrés Felipe and Sarmiento, Julieth},
	title = {Laurent /},
	publisher = {Corporación Unificada Nacional de Educación Superior - CUN},
	year = {2016},
	address = {Bogotá, Colombia },
	url = {https://drive.google.com/file/d/1nO6RJSshqx3vyLKKGwqmxVyEvDYN2Mnp/view}
}