KHADIM, Umair; 						IQBAL, Muhammad Munwar; 						AZAM, Muhammad Awais.
 An Intelligent Three-Level Digital Watermarking Method  for Document Protection.
<strong>Mehran University Research Journal of Engineering and Technology</strong>, [S.l.], v. 40, n. 2, p. 323 - 334, apr. 2021.
ISSN 2413-7219.
Available at: &lt;<a href="https://publications.muet.edu.pk/index.php/muetrj/article/view/2084" target="_new">https://publications.muet.edu.pk/index.php/muetrj/article/view/2084</a>&gt;. Date accessed: 25 apr. 2024.
doi: <a href="http://dx.doi.org/10.22581/muet1982.2102.07">http://dx.doi.org/10.22581/muet1982.2102.07</a>.