Kijkuakul, Sirinapa, Naruemon Yutakom, and Arunee Engkagul. “Grade 11 Students’ Understandings About the Nature of Science”. Kasetsart Journal of Social Sciences 26, no. 2 (December 31, 2005): 133–145. accessed September 11, 2026. https://so04.tci-thaijo.org/index.php/kjss/article/view/246255.