Ma. Sandra Rivera, and John Mark R. Asio. “Demographic Characteristics and Reasons for Progestin Subdermal Implant (PSI) Use: Inputs for Alternative Family Planning Method”. Indonesian Journal of Applied and Industrial Sciences (ESA) 2, no. 4 (July 31, 2023): 361–376. Accessed April 19, 2026. https://journal.formosapublisher.org/index.php/esa/article/view/4840.