Al-Nima, R. R. O., H. Maher, and N. T. Saeed. “Patterns Identification of Finger Outer Knuckles by Utilizing Local Directional Number”. International Journal of Electrical and Computer Engineering Systems, vol. 14, no. 9, Nov. 2023, pp. 1059-68, doi:10.32985/ijeces.14.9.10.