Puyakul, M. N. “Dental Caries Status and Factors that Relates to the Prevalence of Caries in Pathom 6 Primary School in Laksi District BMA and Private School”. Vajira Medical Journal : Journal of Urban Medicine, vol. 49, no. 1, Sept. 2011, pp. 37-45, https://he02.tci-thaijo.org/index.php/VMED/article/view/246.