Sari D, Simamora L. The Effectiveness Of Oketani Massage On The Prevention Of Breast Milk Dams In Postpartum Mothers In The Working Area Of Tanjung Leidong Health Center, North Labuhan Batu Regency . COVID-19 [Internet]. 2023 Oct. 5 [cited 2026 Feb. 9];1(01):1-5. Available from: https://jurnal.devitara.or.id/index.php/sehat/article/view/55