Rezeki S, Erin Padilla Siregar. The Relationship between the Character of the Mother in Labor and the Retention of the Placenta at the Afisya Clinic, Hamlet III, Melur, Sambirejo East village, Percut Sei Tuan District Deli Serdang Regency 2017 - 2021. midwifery [Internet]. 2022 Nov. 24 [cited 2026 May 11];10(5):3811-8. Available from: https://midwifery.iocspublisher.org/index.php/midwifery/article/view/938