RYAN ICHWANTO; RAZAK, M.SI., Dr. Ismail. PENGARUH KUALITAS PRODUK DAN KUALITAS LAYANAN TERHADAP LOYALITAS PELANGGAN PT. GLOBAL SHINSEI INDONESIA. Jurnal Manajemen Bisnis Krisnadwipayana, [S. l.], v. 4, n. 3, p. 43–49, 2016. Disponível em: https://jurnal.unkris.ac.id/index.php/jmbk/article/view/935. Acesso em: 4 jun. 2026.