Lanjakornsiripan, W., S. Amnatbuddee, K. Srijorn, Y. Werawatakul, P. Kleebkaow, R. Komwilaisak, and S. Luanratanakorn. “Contraceptive Seeking Behavior in Teenage Pregnancy”. Srinagarind Medical Journal, vol. 29, no. 4, Nov. 2014, p. 69, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/23636.