Y. Farida, A. F. Khariri, D. Yuliati, and H. Khaulasari, “Clustering Couples of Childbearing Age to Get Family Planning Counseling Using K-Means Method”, MATRIK, vol. 22, no. 1, pp. 189–200, Nov. 2022, doi: 10.30812/matrik.v22i1.1888.