Muhammad Hamka, Maemuna Sa'diyah, Agusman A. Prinsip Menjaga Hubungan Baik dengan Pelanggan pada Manajemen Mutu Terpadu dalam Perspektif Islam: The Principle of Maintaining Good Relationships with Customers in Total Quality Management from an Islamic Perspective. DIRASAH [Internet]. 2024 Oct. 1 [cited 2025 Apr. 29];1(2):132-46. Available from: https://plc.poltekkes-mks.ac.id:443/ojs/dirasah/article/view/25