ISHAK SAAT and AHMAD ZAINUDIN HUSIN, Institusi Raja: Pelbagai Kisah Kesultanan Alam Melayu. Penerbit UTHM, 2021. Accessed: Apr. 09, 2026. [Online]. Available: https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/8