Ismail, Nafil H, Arfah Y, Muda I, Soemitra A, Sugianto. Analysis of the Awareness Level of Islamic Economics Doctoral Students at the State Islamic University of North Sumatera in Using Halal Products. CIBG [Internet]. 2021 Oct. 30 [cited 2025 Oct. 31];27(5):1272-80. Available from: http://www.cibgp.com/index.php/1323-6903/article/view/2060