Heng, Derek (October 2013). “State formation and the evolution of naval strategies in the Melaka Straits, c. 500-1500 CE”. 《Journal of Southeast Asian Studies》 44 (3): 380–399. doi:10.1017/S0022463413000362. S2CID161550066.
Heng, Derek (October 2013). “State formation and the evolution of naval strategies in the Melaka Straits, c. 500-1500 CE”. 《Journal of Southeast Asian Studies》 44 (3): 380–399. doi:10.1017/S0022463413000362. S2CID161550066.