Kuchaiasit, C., Kukiattikul, P., Piniwatsoontorn, P., & Sakammai, S. (2013). Contrraceptive in Family Planning Unit, Srinagarind Hospital. Srinagarind Medical Journal, 1(1), 41–50. Retrieved from https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13240