Davan A T, and Dr. Lakshmi K. “ADVANCED AND SECURED LEAVE APPLICATION PORTAL USING AES ENCRYPTION”. EPRA International Journal of Research and Development (IJRD) 7, no. 6 (June 4, 2022): 10–17. Accessed May 15, 2024. https://eprajournals.net/index.php/IJRD/article/view/494.