“Optimization of Radiation Shielding Design for 13 MeV Cyclotron Using K-500 Concrete, Paraffin, and Lead”. Malaysian Journal of Fundamental and Applied Sciences 16, no. 6 (December 28, 2020): 654–657. Accessed September 16, 2026. https://mjfas.utm.my/index.php/mjfas/article/view/1148.