Aditya, Anggy. “Implementation of Islamic Business Ethics Principles in Building Consumer Loyalty: A Qualitative Study of Culinary Sector MSMEs in Surabaya”. JEBMAFA: Journal of Economics, Business, Management, Accounting, Finance, and Administration, vol. 1, no. 1, Dec. 2025, pp. 89-100, https://journal.megantaraabdinusa.org/index.php/jebmafa/article/view/78.