M. M. Isa and  R. Abd-Rahman and  H. H. Goh,  Design Optimisation of Compound Parabolic Concentrator (CPC) for Improved Performance.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2015, vol. 101(5). 499 - 506
    [viewed 07 May 2024]. Available from: https://publications.waset.org/pdf/10001689.