Kooptarnond, Kalayanee, Lek Sikong, Tripob Bhongsuwan, and Sompong nontapan. “Ferrite-STR 5L rubber composites as gamma radiation shields. (Thai)”. Asia-Pacific Journal of Science and Technology 13, no. 2 (April 19, 2017): 269–278. accessed September 30, 2026. https://so01.tci-thaijo.org/index.php/APST/article/view/83729.