Sakondhavat, C., Kanato, M., Leungtonkum, P. and Kuchaisit, C. (2013) “ Reproduction and contraception in The Teenagers : Case study in Khon Kaen Vocational Students”., Srinagarind Medical Journal, 5(2), pp. 73–82. available at: https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13516 (accessed: 17 September 2026).