Ilmaknun L- luk, Zahiroh MY. EFFECTIVENESS OF 9P MARKETING MIX STRATEGY IN EFFORTS TO IMPROVE SERVICE QUALITY AT PT. BPRS MITRA MENTARI SEJAHTERA PONOROGO. ar-rihlah. j. keuang. dan. perbank. syariah. [Internet]. 2025 Jul. 31 [cited 2026 Apr. 16];5(1):72-85. Available from: https://jurnal.unsur.ac.id/index.php/ar-rihlah/article/view/5247