LUYEN, C. T. Secure Sudoku Mapping for Dual-Image Reversible Data Hiding. Journal of Science and Technology on Information security, [S. l.], v. 2, n. 28, p. 123-136, 2026. DOI: 10.54654/isj.v2i28.6419. Disponível em: https://isj.vn/index.php/journal_STIS/article/view/6419. Acesso em: 25 aug. 2026.