MARZUKI, NUR NADIRA SYAHIRAH. “An Investigation of Density and Thickness of Geopolymer Concrete As Gamma Ray Radiation Shielding Application”. Enhanced Knowledge in Sciences and Technology 3, no. 2 (December 5, 2023): 479–487. Accessed May 14, 2024. https://publisher.uthm.edu.my/periodicals/index.php/ekst/article/view/10803.