Affandi, B., Hoesni, H., Barus, R., Amran, R., Iskandar, F., Noerpramono, N., Dewata, L., Ngartjono, W., Sopacua, A., Korver, T., Paul Geurts, T., & Coelingh Bennink, H. (1999). A multicentred phase III comparative study between single-implant containing 3-ketodesogestrel (Implanon®) and implants containing levonorgestrel (Norplant®) II. Vaginal bleeding patterns. Medical Journal of Indonesia, 8(1), 56–61. https://doi.org/10.13181/mji.v8i1.678