Ismail, Nafil, H. ., Arfah, Y. ., Muda, I. ., Soemitra, A. ., & Sugianto. (2021). Analysis of the Awareness Level of Islamic Economics Doctoral Students at the State Islamic University of North Sumatera in Using Halal Products. The Journal of Contemporary Issues in Business and Government, 27(5), 1272–1280. Retrieved from https://cibgp.com/au/index.php/1323-6903/article/view/2060