M. Saucedo Fernández, S. del C. Herrera-Sánchez, J. J. Díaz Perera, S. Bautista Maldonado, and H. A. Salinas Padilla, “Failing rates: Faculty of Educational Sciences (UNACAR)”, RIDE, vol. 5, no. 9, pp. 96 - 106, Jan. 2015.