Piyush Pal and  Rahul Dev,  Experimental Study on Modified Double Slope Solar Still and Modified Basin Type Double Slope Multiwick Solar Still.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 109(1). 70 - 75
    [viewed 15 November 2019]. Available from: https://publications.waset.org/pdf/10003580.