Thi Hai Yen, Nguyen, and Naowarat Kanchanakhan. “Prevalence and Factors Related to Dental Caries Among 6 Year-Old Children in Nha Trang City, Khanh Hoa Province, Vietnam”. Journal of Health Research 29, no. 4 (August 25, 2017): 251–258. Accessed May 3, 2024. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/97181.