Hawariyuni, Weni, and Sarojani Krishnan. “The Preferences of Muslim Consumers’ Behaviour on Halal Food Based on the Utility Maximization Theory”. International Journal of Engineering & Technology 7, no. 4.29 (November 26, 2018): 37–39. Accessed July 18, 2024. https://sciencepubco.com/index.php/ijet/article/view/21670.