Firdaus DA, Jihad FH, Mursaha SIM. Sources of cysteine-based pharmaceutical drugs and their halal aspects in product development. Halal Stud. Soc. [Internet]. 2023Dec.18 [cited 2024Nov.21];1(1):34-7. Available from: https://journal.ipb.ac.id/index.php/hass/article/view/52976