Affandi, B., Suherman, S. K., Korver, T., Paul Geurts, T. and Coelingh Bennink, H. (1999) “A pharmacokinetic and pharmacodynamic study with a single implant containing 3-ketodesogestrel (Implanon®)”, Medical Journal of Indonesia, 8(1), pp. 15-24. doi: 10.13181/mji.v8i1.673.