CANDRA, R.; ASTUTI, N.; PANJAITAN, F. ANALISIS PENGARUH KUALITAS PRODUK, HARGA, DAN PROMOSI TERHADAP LOYALITAS PELANGGAN BELFOODS DI PANGKALPINANG . JURNAL PROGRESIF MANAJEMEN BISNIS, [S. l.], v. 9, n. 1, p. 1–6, 2022. Disponível em: https://e-jurnal.stie-ibek.ac.id/index.php/JIPMB/article/view/161. Acesso em: 5 mei. 2024.