Srimuang S. “A Comparative Study of Pregnancy Outcome Between Teenage Pregnancy and Adult Pregnancy in Nangrong Hospital”. Journal of The Department of Medical Services 43, no. 2 (April 1, 2018): 67–71. Accessed September 25, 2022. https://he02.tci-thaijo.org/index.php/JDMS/article/view/248189.