Halim, Kevin Yudhaprawira, et al. “Gender Classification Based on Electrocardiogram Signals Using Long Short Term Memory and Bidirectional Long Short Term Memory”. Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika, vol. 9, no. 3, July 2023, pp. 606-18, doi:10.26555/jiteki.v9i3.26354.