Riquelme, I., and M. Del Cid. “FACTS UNDER CONSIDERATIONS REGARDING THE ENGLISH CERTIFICATION TEST AT THE UNIVERSITY OF PANAMA”. Revista Científica Orbis Cógnita, vol. 2, no. 1, Jan. 2018, pp. 1-14, https://revistas.up.ac.pa/index.php/orbis_cognita/article/view/87.