Azman Suhaimy, K. et al. 2018. The Concept of Leadership and Constitution from The Islamic and Malay Archipelago Perspectives According to Taj Al-Salatin Manuscript. International Journal of Engineering and Technology. 7, 4.9 (Oct. 2018), 158–162. DOI:https://doi.org/10.14419/ijet.v7i4.9.20642.