ECORFAN Journal-Taiwan, Volume 3, Number 6, December-2019, is a biannual Journal edited by ECORFAN-Taiwan. Taiwan, Taipei. YongHe District, ZhongXin, 69th Street. Postcode: 23445. http://www.ecorfan.org/taiwan, journal@ecorfan.org. Responsible editor Vargas-Delgado, Oscar. ISSN: 2524-2121. Responsible for the last update of this issue ECORFAN Computer Unit. Imelda Escamilla Bouchán, PhD. Vladimir Luna Soto, PhD. Taiwan, Taipei. YongHe District, ZhongXin, 69th Street. Postcode: 23445. Last update date 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