Lau-González, M. M., and M. J. Á. Corona-Hernández. “General and Inorganic Chemistry´s Award Examination. A Step to Promote the Developing Learning of Students”. Revista Cubana De Química, vol. 26, no. 1, Nov. 2015, pp. 10-16, https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/304.