Md Ariffin, M. F., K. . Ahmad, and S. Man. “Instrumen Analisis Hadith Sebagai Alat Pengukuran Isu Keselamatan Makanan Dalam PKS Sektor Perkhidmatan Makanan: Hadith Analysis Tool As Measurement Instrument for Food Safety Issues in the Food Service Sector SMEs”. Online Journal of Research in Islamic Studies, vol. 5, no. 2, Aug. 2018, pp. 81-99, http://adum.um.edu.my/index.php/RIS/article/view/33617.