K. Ismaeel, Khula, and خوله. “Quadratic Root Law (one of the Store Models) to Change the Rent of the Houses”. Journal of Education and Science (JES) 22, no. 4 (December 1, 2009): 188–194. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18314.