Thongmee, Nardnarumon, Ameporn Rathinthorn, and Piyanun Limruangrong. 2015. “Factors Predicting Contraception in First-Time Adolescent Mothers During Post Partum Period”. Nursing Science Journal of Thailand 33 (1):51-59. https://he02.tci-thaijo.org/index.php/ns/article/view/41212.