Nasar, A. W., M. Sohail, S. M. Ali Bokhari, J. K. Kasi, and A. K. Kasi. “IMPLEMENTATION OF VISIBLE LIGHT COMMUNICATION BASED SYSTEM FOR INDOOR POSITIONING”. MATTER: International Journal of Science and Technology, vol. 3, no. 1, Jan. 2017, pp. 67-80, doi:10.20319/mijst.2017.31.6780.