Prem Singh and  Jagdeep Singh,  Performance Evaluation of Single Basin Solar Still.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2015, vol. 106(10). 1205 - 1208
    [viewed 10 December 2019]. Available from: https://publications.waset.org/pdf/10002356.