Fakhiraldeen H. Ali, Dr., and Azzam E. Mahmood. “Fractal Image CompressionَQuad-Tree”. Al-Rafidain Engineering Journal (AREJ) 14, no. 4 (December 28, 2006): 82–98. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/arej/article/view/30584.