POTRET DETERMINAN UNMET NEED KB MELALUI ECOLOGICAL APPROACH DI KABUPATEN ROKAN HILIR PROVINSI RIAU. Maj. Kes. [Internet]. 2025 Apr. 16 [cited 2025 May 18];12(1):31-40. Available from: https://majalahfk.ub.ac.id/index.php/mkfkub/article/view/728