M. I. H. Othman, L. Abdul Rasol, N. Ibrahim, R. A. Bin Ibrahim, N. H. Che Hassan, and M. H. A. Md Baharudin, “Knowledge And Awareness Of Muslim Consumers Towards Gelatine Existence In Halal Pharmaceutical Products: A Case Study Of Duopharma Bangi”, JISED, vol. 10, no. 77, pp. 234–245, Oct. 2025.