Alaa Mohsen Habeeb, and Dr.Ilham Jabbar Faris. “Mental Fitness and Its Relationship to the Depth of Knowledge in Mathematics for Secondary School Students”. Kurdish Studies 11, no. 2 (December 27, 2023): 495–509. Accessed July 22, 2024. https://kurdishstudies.net/menu-script/index.php/KS/article/view/633.