Porntepkasemsan, B., W. Kulsawat, and P. Nochit. “Characteristics of the stable isotopes ( 18O and D) composition in precipitation from Bangkok, KamPhaeng-Phet and Suphanburi, Thailand”. Engineering and Applied Science Research, vol. 43, Nov. 2016, pp. 78-80, https://ph01.tci-thaijo.org/index.php/easr/article/view/69698.