Joram, K., K. James, M. Daniel, and C. Joshua. “Evaluating Willingness to Pay for Watershed Protection in Ndaka-Ini Dam, Murang’a County, Kenya”. East African Agricultural and Forestry Journal, Vol. 84, no. 1, July 2019, https://www.kalro.org/www.eaafj.or.ke/index.php/path/article/view/464.