1. The state of the art of commercially available, small-scale photovoltaic pumping systems;Derrick,1982
2. Direct coupling of photovoltaic power source to water pumping system;Hsiao;Solar Energy,1984
3. Design and operation of a remote photovoltaic deep well stock-water pump;Hutchinson,1982
4. An analytical approach to a photovoltaic water pumping system;Leguerne,1980
5. The application of photovoltaics to water pumping and irrigation in Africa;Verspieren,1980