1.
K. Zeki M, J. Abdul-Kahader A, A. Daoud N. Density Law of Spiral Galaxy Relative to Rotation Curves. RSCI [Internet]. 2009 Sep. 1 [cited 2025 Sep. 29];20(6):90-6. Available from: https://jamh.uomosul.edu.iq/index.php/rsci/article/view/46320