Wattansupt, N., Isarabhakdi, P., Thongthai, V., Casterline, J. B., & Matthew, S. A. (2009). Influences of Family Planning Services on Contraceptive Failure: Evidence from the Kanchanaburi Demographic Surveillance System. Journal of Population and Social Studies [JPSS], 17(2), 47–64. Retrieved from https://so03.tci-thaijo.org/index.php/jpss/article/view/84644