G. Saeed, Sufyan, and R. B. Esmaeel. “αg_Ị-Open Sets and αg_Ị-Functions”. Ibn AL- Haitham Journal For Pure and Applied Sciences 34, no. 1 (January 20, 2021). Accessed May 24, 2022. https://jih.uobaghdad.edu.iq/index.php/j/article/view/2555.