Dahiru Dahuwa, et al. “Microstructural, Elemental, and Density Characterization of Bismuth-Clay-Reinforced Cement–Sand Composites for Radiation Shielding Applications”. Journal of Systematic, Evaluation and Diversity Engineering, vol. 11, no. 5, Mar. 2026, https://doi.org/10.70382/ajsede.v11i5.026.