Najla, Nailun, and Nurul Huda. “Halal Certification Policies in OIC and Non-OIC Countries: A Comparative Analysis of Indonesia, Malaysia, Thailand, and Singapore”. Journal of Halal Product and Research (JHPR) 8, no. 1 (June 30, 2025): 60–74. Accessed July 23, 2025. https://e-journal.unair.ac.id/JHPR/article/view/66405.