FARIDAH BINTI YUNOS; NURUL AINA BINTI ROSLI; WITRIANY BASRI. Double Encryption of Grayscale Images Using Hill Cipher with Self-Invertible Keys. Applied Mathematics and Computational Intelligence (AMCI), [S. l.], v. 15, n. 2, p. 40–58, 2026. DOI: 10.58915/amci.v15i2.2578. Disponível em: https://ejournal.unimap.edu.my/index.php/amci/article/view/2578. Acesso em: 5 jun. 2026.