Promdee, Supaporn, Narumon Saratapun, and Apinya Hirunwong. 2017. “Factors Related to at–risk Behavior to Obesity of Grade 6 Students under the Office of Bangkok Metropolitan Primary Education”. Kasetsart Journal of Social Sciences 38 (1):435-44. https://so04.tci-thaijo.org/index.php/kjss/article/view/242641.