Mustapah, J., and R. Rosli. “Tahap Kepuasan Pembelajaran Matematik Atas Talian Semasa Pandemik COVID-19”. Malaysian Journal of Social Sciences and Humanities (MJSSH), Vol. 6, no. 4, Apr. 2021, pp. 1 -20, doi:10.47405/mjssh.v6i4.752.