Enhancement of speech scrambles using DNA technique and chaotic maps over transformation domain. Periodicals of Engineering and Natural Sciences, [S. l.], v. 9, n. 2, p. 510–523, 2021. DOI: 10.21533/pen.v9.i2.759. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/759. Acesso em: 1 may. 2026.