Nguyen, T.-L., & Tran, Q.-H. (2026). Constructing waveform of P, Q, R, S, and T waves in ECG signals for cardiovascular disease diagnosis. HPU2 Journal of Science: Natural Sciences and Technology, 5(01), 65–75. https://doi.org/10.56764/hpu2.jos.2026.5.01.65-75