M. M. Hasan, M. K. Ahmed, F. Hafiz, A. M. I. Hussain, S. Parveen, and S. R. Tinni, “Load of HeteLoad of Heterotrophicrotrophic and Nitrifying Bacteria in the Sewage Lagoon and the Receiving River Buriganga”, Bangla. J. Microbiol., vol. 23, no. 2, pp. 93–97, Jun. 2008.