Hadji Abdul Racman, S. M. “The Islamicity of the Lanao Sultanate Practices on Land Grant With Special Reference to the Political Thought of Al-Māwardī on Land Grant”. Firdaus Journal, vol. 1, no. 1, Dec. 2021, pp. 79-92, doi:10.37134/firdaus.vol1.1.8.2021.