Mohamed Ariff, Nur Farah Wahidah, Mohd Irwan Juki, and Abdullah Faisal Alshalif. 2021. “Effect Of Concrete Grade On Carbonation Intrusion: A Systematic Review”. Recent Trends in Civil Engineering and Built Environment 2 (1): 190-98. https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/1387.