A. H. Embong, M. F. Mohd Yasin, and M. Ghazaly, “Keberkesanan Modul Ulul Albab secara atas talian: Satu kajian di Universiti Malaysia Terengganu”, Firdaus, vol. 1, no. 1, pp. 93–102, Dec. 2021, doi: 10.37134/firdaus.vol1.1.9.2021.