SOEHARDI, Soehardi. Model Peningkatan Volume Penjualan Melalui Kualitas Produk, Kualitas Pelayanan dan Loyalitas Kopi Golda. Jurnal Manajemen Strategi dan Aplikasi Bisnis, [S. l.], v. 4, n. 2, p. 353–360, 2021. Disponível em: https://www.ejournal.imperiuminstitute.org/index.php/JMSAB/article/view/398. Acesso em: 10 jun. 2026.