Ahmed Khalid, Usama, و Samra Kanwal. 2022. “Anti-CRISPR: Phage’s Retaliation Discloses The New Defense Plan : Anti-CRISPR, A New Defensive Mechnaism”. PSM Microbiology 7 (3):53-60. https://psmjournals.org/index.php/microbiol/article/view/641.