Chamorro-Atalaya, Omar, Soledad Olivares-Zegarra, Raquel Atoche-Wong, Marco Anton-De los Santos, Maritte Fierro-Bravo, Kathy Ruiz-Carrasco, Elio Huaman-Flores, Madison Huarcaya-Godoy, and Carlos Chávez-Herrera. “Academic Performance before and During the State of Emergency Due to Covid-19: Analysis from the Perspective of Distance Education”. International Journal of Learning, Teaching and Educational Research 21, no. 7 (July 30, 2022): 366–378. Accessed April 17, 2026. http://www.ijlter.myres.net/index.php/ijlter/article/view/1374.