Shaisombat, J., and M. Wongsaphan. “The Study on Instructional Guideline to Enhance Active Citizenship for Grade 6 Students at Photsri Municipal School, Under the Administration of Mahasarakham Municipality”. Journal of Education Rajabhat Maha Sarakham University, vol. 21, no. 2, Aug. 2024, pp. 204-15, https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/274817.