Watcharee Rueankhong และ Somsak Suthutvoravut; Jirat Tangthitiwong. (2018) Factors Associated With the Use of Subdermal Etonogestrel Implants Among Postpartum Primipara Adolescents. <i>Ramathibodi Medical Journal</i>, <i>41</i>(1), 9 - 16.Watcharee Rueankhong และ Somsak Suthutvoravut; Jirat Tangthitiwong. "Factors Associated With the Use of Subdermal Etonogestrel Implants Among Postpartum Primipara Adolescents". Ramathibodi Medical Journal 41 (2018):9 - 16.Watcharee Rueankhong และ Somsak Suthutvoravut; Jirat Tangthitiwong. Factors Associated With the Use of Subdermal Etonogestrel Implants Among Postpartum Primipara Adolescents. Faculty of Medicine Ramathibodi Hospital, Mahidol University:ม.ป.ท. 2018.