Setyawati, Riska, Priyambada Nugraha, Her Ariswati, and Nur Hasanah Ahniar. 2020. “An Improved Measurement Accuracy of Fetal Heart Rate Using Digital Filter”. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics 2 (3), 136-42. https://doi.org/10.35882/ijeeemi.v2i3.5.