M.S., S., H. Nahar, M. Zulkiflee, and A. Hassan. “A Secure Memo for Mobile Application Using Blowfish Encryption Technique”. Journal of Advanced Computing Technology and Application (JACTA), Vol. 1, no. 2, Nov. 2019, pp. 15-20, https://jacta.utem.edu.my/jacta/article/view/5195.