Susilawati Mohamad, Fatma, and Khaled Alhadi Meftah. “Features Level Fusion through Multimodal Biometrics by Using Face, Finger Vein, Fingerprint and Iris”. International Journal of Engineering and Technology, vol. 7, no. 3.28, Aug. 2018, pp. 170-2, https://doi.org/10.14419/ijet.v7i3.28.23413.