ECORFAN Journal Republic of Colombia, Volume 5, Number 9, December-2019, is a biannual Journal edited by ECORFAN- Republic of Colombia. 35 Street, 44A Number, 19 Apartment, Antoquia Department, Colombia. WEB: www.ecorfan.org/republicofcolombia/, journal@ecorfan.org. Responsible editor: Arcila-Arango, Mauricio. ISSN: 2539-1372. Responsible for the last update of this issue ECORFAN Computer Unit. Imelda Escamilla Bouchán, PhD. Vladimir Luna Soto, PhD. 35 Street, 44A Number, 19 Apartment, Antoquia Department, Colombia. Date of last update December 31, 2019. The opinions expressed by the authors do not necessarily reflect the position of the publisher of the publication. It is strictly forbidden the total or partial reproduction of the contents and images of the publication without prior authorization from the National Directorate of Copyright