Augsornrat, Supattra, Pajongsil Perngmark, and Wannee Chansawang. 2018. “Family Structure, Family Functions, and Sexual Risk Behaviors Among Female Junior- High School Students: Nakhon Si Thammarat Province”. Journal of Health Science of Thailand 18 (5):736-44. https://thaidj.org/index.php/JHS/article/view/1809.