Funding for this research was provided by:
Consejo Nacional de Ciencia y Tecnología (222843)
Universidad Autónoma de Tlaxcala (CACyPI-UATx-2017)
Program to Strengthen Quality in Educational Institutions (C/PFCE-2016-29MSU0013Y-07-23)
Article History
Received: 12 July 2017
Accepted: 16 April 2018
First Online: 24 April 2018