Woranit, J. ., P. . . Prasertsang, and S. . Rattanasuk. “THE DEVELOPMENT OF SCIENCE-PROBLEM SOLVING ABILITY OF GRADE SIX STUDENTS THROUGH STEM EDUCATION”. Journal of Education Rajabhat Maha Sarakham University, vol. 18, no. 3, Jan. 2022, pp. 169-78, https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/254000.