Patel, Sonali, and Arun Jhapate. “Biometric Finger Knuckleprint Based Authentication System Using Sobel Edge Detection & Emboss”. International Journal of Computer Sciences and Engineering 9, no. 2 (February 28, 2021): 23–28. Accessed February 1, 2026. https://ijcse.isroset.org/index.php/j/article/view/6246.