Rai, Uttam Sing, and Hom Bahadur Basnet. “The Perception of the Teachers Towards Virtual Class and Obstacles During Covid-19 Lockdown Phase”. Journal of Research and Development 4, no. 3 (September 23, 2021): 43–58. Accessed January 22, 2022. https://www.nepjol.info/index.php/jrdn/article/view/39956.