1. Global wind energy Council (GWEC), 〈http://www.gwec.net/index.php?id=180〉; 2011 [accessed 27.03.11].
2. Renewable energy technologies in Africa;Karekezi,1997
3. Wind water pumping: the forgotten option;Smulders;Energy for Sustainable Development,1996
4. Smulders PT. Wind energy for water pumping in developing countries. In: Proceedings of the 6th EWEC conference, Rome; 1986. 1, p. 99–105.
5. Wind water pumping: status, prospects and barriers;Smulders;Renewable Energy,1994