Setiyawan Gunardi, and Sharifah Dahiyah Syed Muhsin. 2020. “DETERMINATION OF UJRAH ON HALAL PRODUCT ANALYSIS AT HALAL PRODUCTS RESEARCH INSTITUTE (IPPH), UNIVERSITI PUTRA MALAYSIA (UPM): A CASE STUDY”. INTERNATIONAL RESEARCH JOURNAL OF SHARIAH, MUAMALAT AND ISLAM (IRJSMI) 2 (5):18-26. https://gaexcellence.com/irjsmi/article/view/88.