Ulya, D. I., and M. Mahmudah. “DECOMPOSITION METHOD FOR FORECASTING THE NUMBER OF PARTICIPANTS OF NEW FAMILY PLANNING IN SURABAYA”. Jurnal Biometrika Dan Kependudukan, vol. 9, no. 1, June 2020, pp. 36-43, doi:10.20473/jbk.v9i1.2020.36-43.