Rosario, M. J. N. D. ., and R. A. dela . Cruz. “Perception on the Online Classes Challenges Experienced During the COVID-19 Pandemic by LSPU Computer Studies Students”. International Journal of Learning, Teaching and Educational Research, vol. 21, no. 2, Feb. 2022, pp. 268-84, https://ijlter.myres.net/index.php/ijlter/article/view/1259.