Mohd Zainudin, T. A. S., M. I. Hishammuddin, and F. Ahmad Judin. “Mobile App:SELFCOV”. Al-Qimah Al-Mudhafah, vol. 7, no. 1, June 2023, pp. 32-40, http://jurnal.usas.edu.my/alqimah/index.php/journal/article/view/85.