1. Impact of pit latrines on groundwater quality of Fokoslum, Ibadan, Southwestern Nigeria;Ahaneku;British Journal of Applied Science and Technology,2014
2. Groundwater quality index of Upper Athi River Basin in Kenya;Ashun;International Journal of Global Environmental Issues,2017
3. CCME (2001). The Canadian Water Quality Index 1.0 technical report, Canadian environmental quality guidelines. Canadian Council of Ministers of the Environment. https://www.gov.nl.ca/ecc/waterres/quality/background/cwqi/#:∼:text=The%20Canadian%20Water%20Quality%20Index,both%20management%20and%20the%20public.
4. The assessment of bore‑hole water quality of Kakamega County, Kenya;Christine;Applied Water Science,2018
5. CIDP (2018). County integrated development plan 2019–2020. Mbale: Vihiga County Government.