Afif Saleh Abugharsa,  Performance Study of ZigBee-Based Wireless Sensor Networks.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2014, vol. 86(2). 480 - 486
    [viewed 21 October 2019]. Available from: https://publications.waset.org/pdf/10008840.