Wiriyasuk, S., Chimwong, L. and Kumpuang, C. (2023) “The Effects of Blended Learning in Butterfly Stroke on Learning Achievement for Mathayomsuksa Two Male Students”, Journal of Graduate Research, 14(1), pp. 17–30. available at: https://so02.tci-thaijo.org/index.php/banditvijai/article/view/259024 (accessed: 29 September 2026).