Pakawatchai, Nitchaon, and Chinawat Tongchat. “Method validation for migration testing of metals from plastic food contact materials to support Thai export”. Bulletin of Applied Sciences 9, no. 9 (October 7, 2022): 71–80. accessed April 22, 2026. https://ph03.tci-thaijo.org/index.php/BAS/article/view/218.