HARIATI, S.; PARDEDE, A. M. H.; SIHOMBING, M. Application of the DCT Algorithm to Protect Image Files with Key Symbols. Journal of Artificial Intelligence and Engineering Applications (JAIEA), [S. l.], v. 3, n. 3, p. 618–623, 2024. DOI: 10.59934/jaiea.v3i3.456. Disponível em: https://ioinformatic.org/index.php/JAIEA/article/view/456. Acesso em: 3 may. 2026.