Firdaus, F., Ariandi, Firman, and Rasydianah. “Pengukuran Usability ELearning UNSULBAR Selama Masa Pandemi COVID-19 (Studi Kasus: Prodi Pendidikan Biologi)”. BIOMA: Jurnal Biologi Dan Pembelajarannya, Vol. 4, no. 1, June 2022, pp. 23-30, doi:10.31605/bioma.v4i1.1607.