Mohamed Ishak, Mohamed Suhaini, and Zulhabri Ismail. “Variation Management in Construction Contracts: A Comparative Study of PWD 203A (Rev. 01 2010) and PAM 2018”. Journal of Technology Management and Business 12, no. 2 (December 18, 2025): 33–49. Accessed August 12, 2026. https://journal.uthm.edu.my/index.php/jtmb/article/view/22447.