Saptatangtrakun, Yada, Rujira Wattanayingcharoenchai, Jittima Manonai, and Komkrit Aimjirakul. 2016. “Sexual Function in Women Using DMPA Injection and Copper Intrauterine Device”. Thai Journal of Obstetrics and Gynaecology 24 (4). Bangkok, Thailand:294-301. https://doi.org/10.14456/tjog.2016.41.