1. Environmental Microbiology and Biotechnology Unit, Department of Microbiology, University of Calabar, Calabar, Nigeria
2. University of Calabar Collection of Microorganisms (UCCM), University of Calabar, Calabar, Nigeria
3. Environmental Engineering Unit, Department of Civil Engineering, Faculty of Engineering, Cross River University of Technology, Calabar, Nigeria
4. Industrial Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria