Rahmadani, R., and H. D. Hutahaean. “Implementation Of Pohlig-Hellman Algorithm And Steganography Combination Of First Of File (Fof) And End Of File (EOF) For File Security: Implementation Of Pohlig-Hellman Algorithm And Steganography Combination Of First Of File (Fof) And End Of File (EOF) For File Security”. Jurnal Mantik, vol. 4, no. 1, May 2020, pp. 14-19, https://www.ejournal.iocscience.org/index.php/mantik/article/view/654.