นักพรรษา กมลรัตน์, and พันธ์งาม อมรรัตน์. “Development of a Diagnostic Test on the Defect on Integrated Science Process Skills of Student in schools under the Jurisdiction of Secondary Educational Service Area Office 28”. Ubon Ratchathani Journal of Research and Evaluation 5, no. 2 (August 29, 2021): 1–10. accessed September 12, 2026. https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/251007.