Harmanci, A., Y. Kurtulmaz, and B. Ungor. “Duo Property for Rings by the Quasinilpotent Perspective”. Carpathian Mathematical Publications 13, no. 2 (October 17, 2021): 485–500. Accessed November 21, 2024. https://vps.pnu.edu.ua/index.php/cmp/article/view/4761.