Kongprom P, Kusolsong S. The Organizing Free Play or Creative Play in Science Corner Based on the Concept of High-Scope to Promote Rational Thinking Skills for Early Childhood. SDU. Grad. J. [internet]. 2022 Jun. 15 [cited 2025 Jul. 20];18(2):31-49. available from: https://so19.tci-thaijo.org/index.php/SDUGSAJ/article/view/244