Ravangvong, Sunantasak, Punsak Glumglomchit, Thatchapol Hudsathapun, Narawich Mitdee, Teerawatch Ngodngam, Kittisak Sriwongsa, and Chumphon Khobkham. 2021. “Build-up Factors and Fast Neutron Properties of Some Plastic and Polymer for Shielding Materials: A Simulation”. Journal of Applied Research on Science and Technology (JARST) 20 (2):47-56. https://doi.org/10.14456/jarst.2021.5.