Arif, S. , Bakar, N.A. , Sidek, S. and Al-Shami, S.A.H. 2023. 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. 10, 4 (Sep. 2023), 825-834. DOI:https://doi.org/10.15379/ijmst.v10i4.2152.