H. Habeeb Rani, G. Gopalakrishnamoorthy, and V. Thiripurasundari. “On Semi-Commuting Pair of Automorphism of Rings”. Malaya Journal of Matematik 8, no. 04 (October 1, 2020): 2374–2381. Accessed July 16, 2024. https://www.malayajournal.org/index.php/mjm/article/view/1941.