Mohamed Ishak, M.S. and Zulhabri Ismail (2025) “Variation Management in Construction Contracts: A Comparative Study of PWD 203A (Rev. 01/2010) and PAM 2018”, Journal of Technology Management and Business, 12(2), pp. 33–49. Available at: https://penerbit.uthm.edu.my/ojs/index.php/jtmb/article/view/22447 (Accessed: 11 March 2026).