Boonma, Ruethairat, and Piyapong Sumettikoon. 2021. “A Study Need Assessment Component and Instructional Supervision Process Student-Centered of Teachers in Bangpong Samutprakran Primary Educational Service Area Office 1”. An Online Journal of Education 16 (2):OJED1602046 (15 pages). https://so01.tci-thaijo.org/index.php/OJED/article/view/253308.