V. Durai Murugan, R. Seethalakshmi and P. Namasivayam (2021) “A Study on Complementedness in the Subgroup Lattices of $2\times 2$ Matrices Over $Z_{11}$”, International Journal of Mathematics And its Applications, 9(1), pp. 63–65. Available at: http://ijmaa.in/index.php/ijmaa/article/view/102 (Accessed: 7 May 2024).