Hemachandra, A., Rungruxsirivorn, T., Taneepanichskul, S., & Pruksananonda, K. (2012). KAP Study on Contraception in Teenage Pregnancy at Antenatal Care Clinic and Delivery Room in Chulalongkorn Memorial Hospital. Thai Journal of Obstetrics and Gynaecology, 18(4), 154–164. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/1288