Tharachan, Kaiwitt, Wannapol Pimpasalee, Wannatida yonwilad, and Wattanaporn Rungkarach. “Development of mathematical solving problem skill in linear equation with two Variables using KWDL technique of Mattayomsuksa 3 Students”. Journal of Science and Science Education (JSSE) 3, no. 2 (June 25, 2020): 134–142. accessed April 24, 2025. https://so04.tci-thaijo.org/index.php/JSSE/article/view/240840.