ผดุงเจริญ ประวัติ. “Safety in Permanent Radioactive Brachytherapy under Law & Legislation”. Srinagarind Medical Journal 30, no. 5 (October 5, 2015): 15–18. Accessed May 29, 2022. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/39926.