Romi Mulyadi, Albirruni Siregar, Muhammad Ikhwanul Ikhsan, Abu Bakar, and Yona Ramadhika. 2025. “Rancang Bangun Alat Fetal Doppler Berbasis IoT”. Jurnal Penelitian Rumpun Ilmu Teknik 4 (1):87-101. https://doi.org/10.55606/juprit.v4i1.4584.