Widodo, Slamet, Arlina Nurbaity Lubis, Prihatin Lumbanraja, & Syafrizal Helmi Situmorang. " TOURIST LOYALTY ON HALAL TOURISM." Proceeding International Conference Keputeraan Prof. H. Kadirun Yahya [Online], 1.1 (2022): 13-23. Web. 5 Nov. 2024