1. Annalakshmi, G., Amsath, A.: An assessment of water quality of river Cauvery and its tributaries Arasalar with reference to physico-chemical parameters at Tanjore DT, Tamilnadu, India. Int. J. Appl. Biol. Pharm. Technol. 3(1), 269–279 (2012)
2. APA: Standard Methods for the Examination of Water and Wastewater, 20th edn., American Public Health Association/American Water Works Association/Water Environment Federation, Washington, D.C. (1999)
3. Bernard, A.: Assessing the performance of Dompoase wastewater treatment plant and its effect on water quality of the Oda River in Kumasi. Unpublished M.Sc. thesis, Kwame Nkrumah University of Science and Technology, Ghana (2010).
http://wwwdatad.aau.org/handle/123456789/8636
4. Mammo, D.: An assessment of downstream pollution profile of Sebeta River and its surroundings. M.Sc. thesis, School of Graduate Studies, Addis Ababa University (2004)
5. EEPA (Ethioian Environmental Protection Authority): Guideline Ambient Environment Standards for Ethiopia. Prepared by EPA and UNIDO under ESDI project US/ETH/99/068/Ethiopia. Addis Ababa, Ethiopia (2003)