Tee, Weihown, M.R. Yusoff, A.R. Abdullah, M.H. Jopri, N.S.N. Anwar, and H. Musa. 2019. “Spectrogram Based Window Selection for the Detection of Voltage Variation”. International Journal of Integrated Engineering 11 (3). https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/4690.