Akoth, O. E., F. O. Onyango, and E. O. Otumba. “MODELING FERTILITY RATE OF INDONESIA IN THE PRESENCE OF INTERFERENCE: THE 2004 TSUNAMI.”. IJRDO -JOURNAL OF MATHEMATICS, Vol. 2, no. 3, Mar. 2016, pp. 16-27, doi:10.53555/m.v2i3.1610.