Niemlang, J. ., & Raksa-citizen, . C. . (2016). A Study of Knowledge, Attitude and Behavior’s of People in Risky Areas Towards Unplanned Teenage Pregnancy. Journal of MCU Social Science Review, 5(3), 175–188. Retrieved from https://so03.tci-thaijo.org/index.php/jssr/article/view/245555