Zenab Naseem and Sadia Imran, Assessing the Viability of Solar Water Pumps Economically, Socially and Environmentally in Soan Valley, Punjab. journal = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2016, vol. 114(6). 711 - 716 [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10005411.