M. S. Islam, M. S. A. Chowdhury, S. Akter, A. B. M. Y. Arafat, and M. K. G. Azam, “CHALLENGES IN DISTANCE LEARNING DURING THE PANDEMIC SITUATION OF CORONAVIRUS (COVID-19): A PERSPECTIVE FROM BANGLADESH”, aijssr, vol. 6, no. 2, pp. 1-15, Jun. 2021.