Whitley, L., Hutchings, P., Cooper, S., Parker, A., kebede, A., Joseph, S., Butterworth, J., Van Koppen, B., and Mulejaa, A., “A framework for targeting water, sanitation and hygiene interventions in pastoralist populations in the Afar region of Ethiopia”, vol. 222, no. 8, pp. 1133-1144 : 2 fig., 2 tab., 2019.