Shair, E.F., S.A. Ahmad, A.R. Abdullah, M.H. Marhaban, and S.B. Mohd Tamrin. 2018. “Selection of Spectrogram’s Best Window Size in EMG Signal During Core Lifting Task”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 10 (1-16):81-85. https://jtec.utem.edu.my/jtec/article/view/4099.