Nonlinear 4D Hyper - Chotic Dynamics and Invariant Spatial Steganography for Secure Visual Information Transmission. Journal of the College of Basic Education, [S. l.], v. 32, n. 137, p. 859–889, 2026. DOI: 10.35950/cbej.v32i137.15671. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/15671.. Acesso em: 23 aug. 2026.