Wierfi, A. D., A. Jasuma, and D. Ariyus. “Message Encryption Using Spinning Caesar XOR Binary Cryptography Algorithm (SPICA-XB): Message Encryption Using Spinning Caesar XOR Binary Cryptography Algorithm (SPICA-XB)”. Jurnal Mantik, vol. 3, no. 4, Feb. 2020, pp. 439-43, https://iocscience.org/ejournal/index.php/mantik/article/view/587.