Ludviyah, Evie, Sri Wahyuningsih, Agustina Widayati, and Sunanto. “Relationship Between Maternal Parity and Primary Postpartum Hemorrhage”. Health and Technology Journal (HTechJ) 1, no. 3 (June 23, 2023): 327–334. Accessed December 9, 2025. https://journalkhd.com/ojs/index.php/htechj/article/view/62.