Salah Abdulghani Alabady, Thabita Fawaz Shawkat, and Amina Waad Adrees. “Improved Hybrid Cryptographic Methods: Enhancing Caesar and Vigenère Cipher Algorithms”. International Journal of Data Science, Bioinformatics and Cyber Security, vol. 1, no. 1, Mar. 2025, pp. 1-15, https://www.matjournals.net/engineering/index.php/IJDSBCS/article/view/1493.