Teh Hao Wern, Calvin, and Noorwirdawati Ali. 2024. “Fresh Properties and Compressive Strength of 3D Printing Concrete Containing GGBS With Varies in Water-Cement Ratio”. Recent Trends in Civil Engineering and Built Environment 5 (1): 205-15. https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/8036.