Luni Aulia Safwani, Hartoyo, and SuharjoBudi. “Service Model Loyalty for School Yearbook Production at PT XYZ”. Indonesian Journal of Business and Entrepreneurship (IJBE) 10, no. 3 (September 24, 2024): 518. Accessed October 28, 2024. https://journal.ipb.ac.id/index.php/ijbe/article/view/53834.