Jubaidiyah, Rani. “Pengaruh Strategi Diferensiasi Terhadap Keunggulan Bersaing Pada Lazis Muhammadiyah Surabaya”. Journal of Islamic Management 2, no. 2 (July 6, 2022): 131–149. Accessed February 22, 2026. https://jurnalfdk.uinsa.ac.id/index.php/JIM/article/view/998.