Vijayalakshmi. R, Arul Selvan. C, Balakrishnan. K, Kavin Kumar. P, & Mahabalaji. P. (2017). Wireless digital circular system . International Journal of Intellectual Advancements and Research in Engineering Computations, 5(2), 1162–1167. https://doi.org/10.61096/ijiarec.v5.iss2.2017.1162-1167