M. Kau, A. U. Salmah, A. Mallongi, and M. A. Tiro, “Analysis of Factors Affecting the Unmet Need Incidence in Couples of Childbearing Age in the West Bulotadaa Village Gorontalo City in 2019”, Open Access Maced J Med Sci, vol. 8, no. T2, pp. 94–97, Sep. 2020.