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. DOI: 10.36407/jmsab.v4i2.398. Disponível em: http://www.ejournal.imperiuminstitute.org/index.php/JMSAB/article/view/398. Acesso em: 16 aug. 2026.