Vol. 14 No. 29 (2021): July - December

Cover: The cover of this issue is dedicated to the International Year of Peace and Trust, because through the United Nations General Assembly the year 2021 was proclaimed as the International Year of Peace and Trust, in order to stimulate promoting a culture of peace and trust among nations. Designed by MSc. Lenny Mendoza. Universidad Centroccidental Lisandro Alvarado. Venezuela. Email: lennymendoza@ucla.edu.ve