Dahsah C, Sanguanruang S, Sung-Ong S, Yutakom N. Grade 10 and 11 Thai Students’ Conceptions about Stoichiometry. kasetsart J. Soc. Sci. [internet]. 2006 Dec. 31 [cited 2026 Sep. 11];27(2):225-33. available from: https://so04.tci-thaijo.org/index.php/kjss/article/view/246404