Apaza-Panca, C. M., P. J. Maquera-Luque, J. O. Huanca-Frías, L. A. Supo-Quispe, A. P. Távara-Ramos, W. R. Dextre-Martínez, and O. A. Saldaña-Acosta. “Comparison of Psychosocial Factors in University Students from Loreto, Ancash, Moquegua and Puno Confinement by Covid-19, Peru”. Political Questions, Vol. 39, no. 68, Mar. 2021, pp. 51-69, http://www.produccioncientificaluz.org/index.php/cuestiones/article/view/35395.