IRMAYANI, Irmayani; PUTRIAN, A. Ika; RESKY, Aprizal; ASRUN, Budyanita. DOUBLE PENGAMANAN DATA DENGAN PLAYFAIR CHIPER DAN HILL CHIPER. Edutech: Jurnal Pendidikan dan Teknologi, [S. l.], v. 1, n. 2, 2023. DOI: 10.53696/29872359.149. Disponível em: https://pustaka.my.id/journals/edutech/article/view/149. Acesso em: 10 oct. 2026.