I Putu Aditya Surya Pratama, et al. “PENGARUH LOYALTY PROGRAM, DISCOUNT, MERCHANDISNG TERHADAP LOYALITAS PELANGGAN MATAHARI DEPARTMENT STORE DUTA PLAZA”. EMAS, vol. 5, no. 3, Oct. 2024, pp. 81-95, https://e-journal.unmas.ac.id/index.php/emas/article/view/9997.