A. Jaenul, S. Alyousif, A. Amer Ahmed Alrawi, and S. K. Salih, “Robust Approach of De-noising ECG Signal Using Multi-Resolution Wavelet Transform”, IJET, vol. 7, no. 4.11, pp. 5–8, Oct. 2018, doi: 10.14419/ijet.v7i4.11.20678.