Srisupak, R., P. Srisawangwong, and W. Treesoon. “Factors associated with helmet wearing among students in Rajabhat Maha Sarakham University”. UBRU Journal for Public Health Research, vol. 10, no. 2, Dec. 2021, pp. 57-64, https://he02.tci-thaijo.org/index.php/ubruphjou/article/view/244204.