Ismainar, Hetty, and Mishbahuddin Mishbahuddin. 2021. “Family Planning Unmet Need; Determinant Factors and Strategy Design through Health Management Approach and Fishbone Analysis in Riau Province, Indonesia ”. Technium Social Sciences Journal 26 (1). Constanta, Romania:749-60. https://doi.org/10.47577/tssj.v26i1.5231.