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, [S. l.], v. 3, n. 2, p. 479–487, 2023. Disponível em: https://penerbit.uthm.edu.my/periodicals/index.php/ekst/article/view/10803. Acesso em: 8 apr. 2026.