Saifuddin, W. A. “Halal and Haram in the Qur’an and Hadith: The Theological Foundations of Halal Certification in Indonesia”. Darul Hikmah: Jurnal Penelitian Tafsir Dan Hadits, vol. 11, no. 2, September 2025, hlm. 81-98, doi:10.61086/jstiudh.v11i2.88.