Utting, M.G.

Luxton, S.S. et al., 1991. Technical assistance program for the Ministry of Water Resources, Sultanate of Oman : task 3: surface water data collection : task 4: groundwater data collection and management, (Wash field report no. 332) Arlington, VA, USA: Water and Sanitation for Health Project (WASH). Available at: https://fr.ircwash.org/sites/default/files/823-OM91-10087.pdf.