azan EH, Hakim SJ. A Study on The Mechanical Properties of Concrete Containing Fly Ash as Partial Cement Replacement-A Critical Review. rtcebe [Internet]. 2021 Dec. 4 [cited 2026 Jul. 23];3(1):641-9. Available from: https://publisher.uthm.edu.my/periodicals/index.php/rtcebe/article/view/3241