KASSEM, M.; AL-JADEER, Z. Study of the Effect of Different Carbon and Nitrogen Sources in the Production of polysaccharide Xanthan by Xanthomonas campestris ATCC13951 bacteria. Journal of Education and Science (JES), [S. l.], v. 25, n. 2, p. 58–64, 2012. DOI: 10.33899/edusj.2012.59149. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23851. Acesso em: 6 aug. 2025.