A. M. Aris, S., A. Bani, N., N.Muhtazaruddin, M., & N. Taib, M. (2018). EEG Calmness Index Establishment Using Computational of Z-Score. International Journal of Engineering & Technology, 7(4.11), 44-48. https://doi.org/10.14419/ijet.v7i4.11.20686