T. C. Kumasi, Adank, M., Smits, S., Agbemor, B. D., Chimbar, T. L., y Atengdem, J.,
«User satisfaction with handpump water services : a synthesis of findings from 3 districts (Akatsi South, East Gonja and Sunyani West Districts)». IRC, The Hague, The Netherlands, p. 24 p. : 11 fig., 5 tab., 2015.