Sangsuk P, Charoensuk O, Kleebbua C. A causal model of learning achievement of upper primary students with learning engagement as a mediator variable. kasetsart J. Soc. Sci. [Internet]. 2022 Apr. 30 [cited 2024 May 5];43(2):337‒344. Available from: https://so04.tci-thaijo.org/index.php/kjss/article/view/258546