Novoa Palacios, Amparo creator author. Pirela Morillo, Johann author. text bibliography Electronic books. ck 2019 Primera edición. monographic spa 1 online resource. : illustrations. Amparo Novoa Palacios, Johann Pirela Morillo. Includes bibliographical references. Tutors and tutoring Doctoral students Graduate students Active learning LC41 ebook 9789585486560 9585486563 https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/65668/ https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/65668/ DGITA 200930 DIGUSALLE0095 eng