Safiuddin, Md., Md. Abdus Salam, and Mohd Zamin Jumaat. “Utilization of Palm Oil Fuel Ash in Concrete: A Review”. Journal of Civil Engineering and Management 17, no. 2 (July 12, 2011): 234-247. Accessed November 22, 2024. https://journals.vilniustech.lt/index.php/JCEM/article/view/5153.