โลหา พ, จงกลกลาง ส. The development of assertive behavior and creative thinking of early childhood students by STEM Education. Ratchaphruek [internet]. 2019 Feb. 28 [cited 2026 Aug. 26];17(1):121-8. available from: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/175226