@book{147294,
	author = {Peña Cordero, Janeth Susana and Feicán Alvarado, Elsa Astrid},
	title = {Estudio transversal:},
	note = {Incluye resumen},
	url = {http://dspace.ucuenca.edu.ec/bitstream/123456789/21271/1/TESIS.pdf}
}