Oktabriani Iksanatun, F, and P Riono. “The Role of Couple Discussion on Modern Contraceptive Used for Spacing Pregnancy (Analyzed of Indonesian Demographic and Health Survey IDHS 2012)”. KnE Life Sciences, vol. 4, no. 10, Feb. 2019, pp. 437–444, doi:10.18502/kls.v4i10.3749.