I. Al-Saif, Khalil, and Karam M. Abdullah. “Segment the Medical Images Based on Contourlet Transformations”. AL-Rafidain Journal of Computer Sciences and Mathematics 8, no. 2 (December 8, 2011): 23–34. Accessed December 18, 2025. https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36643.