Irasanti, Siska Nia, Nadia Salsabila, and Sandy Faizal. “The Quality and Satisfaction of Halal Products and Services in Sharia-Certified Hospitals: Patient Perspective”. Proceedings of The International Halal Science and Technology Conference 15, no. 1 (December 14, 2022): 200–208. Accessed September 17, 2024. https://proceeding.researchsynergypress.com/index.php/ihsatec/article/view/610.