Devadhanam Joubert E, Pillay B. Visualisation of the microbial colonisation of a slow sand filter using an Environmental Scanning Electron Microscope. Electron. J. Biotechnol. [Internet]. 2008 Apr. 15 [cited 2024 Nov. 22];11(2):0-. Available from: https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v11n2-12