Mohammed Suleiman Mohammed Rudwan, and Salah Eldin Deng Al-Jack. “Performance Analysis of Three Classical Encryption Algorithms, Simple Substitution, Caeser, and Periodic Permutation (the Three SCP) in Encrypting Database Transactions”. Journal of Advanced Research in Computing and Applications, vol. 12, no. 1, Oct. 2023, pp. 35-45, https://akademiabaru.com/submit/index.php/arca/article/view/4998.