Sumber, Sumber, et al. “Noise Reduction of Motion and EMG Artifacts in Holter ECG Using IIR Filters for Robust Arrhythmia Detection”. Journal of Applied Engineering and Technological Science (JAETS), vol. 7, no. 2, June 2026, pp. 1177-01, https://doi.org/10.37385/jaets.v7i2.9426.