Chanapai S, Suanmali W, Thongboonrith K. Studies of Groundwater Quality in Nakhonchum District, Kamphaeng Phet Province. gts [internet]. 2026 Apr. 30 [cited 2026 Sep. 13];3(1):39-45. available from: https://li02.tci-thaijo.org/index.php/gts/article/view/1733