FAKHRUDIN, A. Persepsi Pelanggan terhadap Implementasi Proses Relationship Marketing pada Waroeng Spesial Sambal Yogyakarta. Jurnal Manajemen Bisnis, [S. l.], v. 9, n. 2, p. 116–137, 2018. DOI: 10.18196/mb.9257. Disponível em: https://journal.umy.ac.id/index.php/mb/article/view/5400. Acesso em: 11 may. 2025.