Arafah, R.D. 2021. ANALYSIS OF ACTIVE FAMILY PLANNING PARTICIPANTS AND OPERATIONAL FIELD ACTIVITIES IN SURABAYA IN 2019. Jurnal Biometrika dan Kependudukan (Journal of Biometrics and Population). 10, 1 (Jun. 2021), 76–85. DOI:https://doi.org/10.20473/jbk.v10i1.2021.76-85.