Chairinnisa’Ramadhani, Meisya Tania Putri, Melsa Santiya, & Satriadi. (2026). Malay Leadership Model from an Institutional Economic Perspective in the Riau Islands. Al-Kharaj: Journal of Islamic Economic and Business, 8(2). https://doi.org/10.24256/kharaj.v8i2.10830