Phansana, Koonlapha. 2024. “Integrating Learning About Civic Duties According to the Democratic Method Using the 4 Principles of Influence of High School Students Chatturat Wittayakarn School Chaiyaphum Province”. Journal of Sustainable Social Development 1 (4):17-33. https://so16.tci-thaijo.org/index.php/J_SSD/article/view/554.