Ala O. Hassan, and Ibrahim O. Hamad. “NONSTANDARD COMPLETION OF NON-COMPLETE METRIC SPACE”. Zanco Journal of Pure and Applied Sciences 33, no. 4 (August 18, 2021): 129–135. Accessed July 3, 2024. https://zancojournal.su.edu.krd/index.php/JPAS/article/view/2035.