Kabir, Umar. “DEFINING VARIATION OPERATOR FOR GRAMMAR REACHABILITY SEARCH BASED VULNERABILITIES DETECTION”. FUDMA JOURNAL OF SCIENCES 8, no. 3 (June 30, 2024): 402 - 408. Accessed July 16, 2024. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/2463.