Nermen J. Khalel, Nabeel E. Arif. Chromatic Number and some Properties of Pseudo-Von Neumann Regular graph of Cartesian Product of Rings. Tikrit J. Pure Sci. [Internet]. 2020 Mar. 17 [cited 2025 Jun. 17];25(3):135-40. Available from: https://tjpsj.org/index.php/tjps/article/view/262