Nantajit, C., J. Kosuma, K. Thirapong, C. Potchanasin, S. Wattanutchariya, and K. Iemthanon. “ Chaing Mai Province”. Journal of the Association of Researchers, vol. 25, no. 2, Aug. 2020, pp. 179-90, https://so04.tci-thaijo.org/index.php/jar/article/view/245166.