กอศรีพร กุลยา. “The Development of Learning Achievement in The Development of Southeast Asia of Mathayomsuksa 1 Students by Using Cooperative Learning Management Using STAD Technique”. Education journal Faculty of Education, Nakhon Sawan Rajabhat University 3, no. 1 (January 29, 2022): 13–23. accessed December 10, 2025. https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/254285.