WASET
    B. O. Ayinmode and  I. P. Farai,  Evaluation of GSM Radiation Power Density in Three Major Cities in Nigeria.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 94(10). 740 - 743
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10000194.