Mooltha, S., & Bhiasiri , S. (2022). The research study the result of the visual art learning in creative Tung Isan Flag by project-based learning for Grade 9 students. Journal for Developing the Social and Community, 9(2), 123–136. retrieved from https://so03.tci-thaijo.org/index.php/rdirmu/article/view/254523