Hashemi, Samira, Feysal Hassani, and Rasul Rasuli. “The New Results in N-Injective Modules and N-Projective Modules”. Earthline Journal of Mathematical Sciences 7, no. 2 (August 19, 2021): 271-285. Accessed November 21, 2024. https://earthlinepublishers.com/index.php/ejms/article/view/370.