Muhammad Irfan Aziz and Thomas Owens and Uzair Khaleeq uz Zaman, Received Signal Strength Indicator Based Localization of Bluetooth Devices Using Trilateration: An Improved Method for the Visually Impaired People. journal = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology. January 2019, vol. 146(2). 88 - 93 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/10010071.