Al-Afify, Afify D.G., and Amaal M Abdel-Satar. 2020. “Risk Assessment of Heavy Metal Pollution in Water, Sediment and Plants in the Nile River in the Cairo Region, Egypt”. Oceanological and Hydrobiological Studies 49 (1):1-12. https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/7741.