Secured Watermarking Image Using Spread Spectrum. Tikrit Journal of Engineering Sciences, [S. l.], v. 23, n. 3, p. 71–78, 2016. DOI: 10.25130/tjes.23.3.08. Disponível em: https://tj-es.com/ojs/index.php/tjes/article/view/302.. Acesso em: 9 sep. 2026.