ROZLOMII, Inna, and Andrii YARMILKO. “INTEGRATED ENCRYPTION-STEGANOGRAPHY PROTECTION OF MULTIMEDIA CONTENT AND DATA IN E-LEARNING SISTEMS”. Cherkasy University Bulletin: Applied Mathematics. Informatics, no. 1 (December 22, 2022). Accessed May 4, 2026. https://ami-ejournal.cdu.edu.ua/article/view/5593.