Noor Muhammad, S. J. (2014). Strategi Utusan Kerajaan dalam Menjalin Hubungan Diplomatik pada Zaman Kesultanan Melayu: Government Resolution Strategy in Establishing Diplomatic Relations During Malay Sultanate. PENDETA, 5, 113–144. Retrieved from https://ojs.upsi.edu.my/index.php/PENDETA/article/view/1198