Emmanuel O.O. Ojakominor and  Tian F. Lai,  Statistical (Radio) Path Loss Modelling: For RF Propagations within localized Indoor and Outdoor Environments of the Academic Building of INTI University College (Laureate International Universities).   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2009, vol. 26(2). 367 - 389
    [viewed 16 October 2019]. Available from: https://publications.waset.org/pdf/1073.