ASWATHBABU.O.G, GOPINATH.P, RAJKUMAR.S, and S.KAVITHA. 2018. “Velocity Based Tracking and Localization System Using Smartphones With GPS and GPRS/3G”. International Journal of Intellectual Advancements and Research in Engineering Computations 6 (2):1853-57. https://doi.org/10.61096/ijiarec.v6.iss2.2018.1853-1857.