Cempaka Kumala Sari, Safira Fegi Nisrina, and Sugeng Santoso. “Perancangan Dan Pembuatan Fetal Doppler Simulator”. Bunda Edu-Midwifery Journal (BEMJ) 8, no. 1 (November 13, 2024): 57–62. Accessed April 17, 2025. https://bemj.e-journal.id/BEMJ/article/view/258.