Tanyarattanasrisakul, Mathasit. “Theoretical Validity Test for the Assessment Model of Efficiency of Instruction on Enrichment Science Classroom Project Rachineeburana School at Nakhon Pathom Province”. Interdisciplinary Research Review 11, no. 4 (October 8, 2016): 27–33. Accessed May 3, 2024. https://ph02.tci-thaijo.org/index.php/jtir/article/view/56197.