Zakik, Zakik, Ahmad Kamil, Alvin Sugeng Prasetyo, Muhamad Nafik Hadi Ryandono, and Ida Wijayanti. “Economic Development on Madura Island through Halal Tourism: A Business Feasibility Study”. al-Uqud : Journal of Islamic Economics 6, no. 2 (July 30, 2022): 289–303. Accessed May 13, 2024. https://journal.unesa.ac.id/index.php/jie/article/view/19372.