Jonbi, J. ., Fulazzaky, M. A. ., & Arif, H. . (2021). Assessment of the Precast Concrete Performance by using Sand with High Sludge Content: Effects of Cement and Polycarboxylate Ether. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences, 56(4), 55–61. Retrieved from https://ppaspk.org/index.php/PPAS-A/article/view/72