Rakpakdee, Duennapa, U-rasa Promta, and Chumnian Pollharn. 2020. “The Development of Moderate Class More Knowledge Activities of Lao Yao Wittayakarn School under the Secondary Education Service Area Office 26”. Journal of Research and Development Institute Rajabhat Maha Sarakham University 7 (1):103-20. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/245064.