Khansumrit, Supansa, and Navara Seetee. “Construction of Creative Problem-Solving Abilities Test for 7th Grade Students in a Special Science-Mathematics Class”. Ratchaphruek Journal 21, no. 1 (March 28, 2023): 200–215. accessed August 26, 2026. https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/261692.