N. Pushparani, A. Vethamanickam. 2023. “On The Structure of Some Lower Intervals in the Subgroup Lattices of 2×2 Non-Singular Matrices Overz5”. The International Journal of Multiphysics 17 (4):545 -53. https://www.themultiphysicsjournal.com/index.php/ijm/article/view/1879.