Zhafirah, J., and I. Siregar. “Pengaruh Kualitas Pelayanan Terhadap Keputusan Penggunaan Jasa Di PT Showbitz Mitra Utama Medan”. IKRAITH-EKONOMIKA, Vol. 9, no. 1, Mar. 2026, pp. 1248-62, https://journals.upi-yai.ac.id/index.php/IKRAITH-EKONOMIKA/article/view/6368.