ภิวงศ์กำจร พ. “Development of Preventive and Solving Strategies for Teenage Pregnancy by Participation of Family, Community and Local Organizations in Kumpawapi Sub-District, Udonthani Province”. Journal of Health Science of Thailand, vol. 29, no. 4, Aug. 2020, pp. 608-17, https://thaidj.org/index.php/JHS/article/view/9304.