Sánchez-Corona, V. “Physicochemical Properties Variation in Response to the Establishment of Various Agricultural Activities in Luvisoles of the North Mountains of Puebla”. Revista Latinoamericana De Recursos Naturales, Vol. 4, no. 2, July 2008, pp. 259 -268, https://revista.itson.edu.mx/index.php/rlrn/article/view/134.