ARIF, S. .; BAKAR, N. A. .; SIDEK, S. .; AL-SHAMI, S. A. H. . MYeHALAL System Usage During the Covid-19 Pandemic: Proposing a Socio-Technical Model to Enhance the Certifier’s Role . International Journal of Membrane Science and Technology, v. 10, n. 4, p. 825-834, 29 Sep. 2023.