The Leadership Role of the Sultan and Government Policy of the Malay Kingdom of Riau-Lingga: Maritime Economic Perspective in Islamic Malay Historiography. Intl. J. Rel. [Internet]. 2024 Aug. 21 [cited 2026 May 12];5(11):7187 – 7197. Available from: https://ijor.co.uk/ijor/article/view/7664