Kuria, David Ndegwa; Gachari, Moses Karoki; Macharia, Mary Wandia; Mungai, Esther(International Journal of Water Resources and Environmental Engineering, 2012-01)
Kuria, David Ndegwa; Kasumuni, R.; Ngigi, Moses Murimi(Department of Mechanical Engineering Seminar Series 11 – sustainable research and innovation, 2009-01)