Shahid, K. A., M. A. Sulaiman, N. Ghazali, W. A. Rahman, and A Zukri. “Palm Oil Clinker As Drainage Layer in Green Roof System Under Malaysia Climatic Conditions”. Journal of Engineering and Technology (JET) 5, no. 2 (December 31, 2014): 27–38. Accessed November 21, 2024. https://jet.utem.edu.my/jet/article/view/158.