Jan, Z., M. Shabir, M. A. Khan, A. Ali, and M. Muzammal. “Online Urdu Handwriting Recognition System Using Geometric Invariant Features”. The Nucleus 53, no. 2 (June 30, 2016): 89–98. Accessed May 2, 2024. http://thenucleuspak.org.pk/index.php/Nucleus/article/view/216.