Sunanta S, Proyngern C. The Perceived of The Grade 3 Students of Secondary School in Bangkok on Premarital Sex Behavior and Adolescent Pregnancy. J Royal Thai Army Nurses [Internet]. 2021 Sep. 4 [cited 2024 Apr. 18];22(2):105-14. Available from: https://he01.tci-thaijo.org/index.php/JRTAN/article/view/246970