Sabrina, R., D. Aprilawati, and S. R. Dwiningsih. “Risk Factors Associated With Spontaneous Abortion at Dr. Soetomo Hospital in 2019-2023”. Indonesian Midwifery and Health Sciences Journal, vol. 9, no. 1, June 2025, https://e-journal.unair.ac.id/IMHSJ/article/view/66891.