Mang, Wong Jia, Abdul Ghani Md Rafek, and Goh Thian Lai. “Issues in Engineering Geological Classification of Weathered Sedimentary Rocks: Case Study of Kati Formation, Parit, Perak”. International Journal of Engineering and Technology 7, no. 4.35 (November 30, 2018): 131–135. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/22341.