Journal of Business Development Strategies, Volume 7, Number 19, June- 2021, is a six-monthly Journal edited by ECORFAN-Spain. Matacerquillas Street 38, CP: 28411. Moralzarzal-Madrid. WEB: http://www.ecorfan.org/spain/rj_docencia_ie.php, revista@ecorfan.org. Editor in Chief: CHIATCHOUA, Cesaire. PhD. ISSN 2444-4952. Responsible for the last update of this issue ECORFAN Computer Unit. Imelda Escamilla Bouchán, PhD. Vladimir Luna Soto, PhD. Updated as of June 30, 2021. The opinions expressed by the authors do not necessarily reflect the views of the publisher of the publication. It is strictly forbidden the total or partial reproduction of the contents and images of the publication without permission from the Spanish Center for Science and Technology.