โลหา พ. and จงกลกลาง ส. (2019) “The development of assertive behavior and creative thinking of early childhood students by STEM Education”, Ratchaphruek Journal, 17(1), pp. 121–128. available at: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/175226 (accessed: 26 August 2026).