R. Deepika, R. A.Kalpana, S. Meera, and R. Sharmikha Sree, “Advanced Toll Plaza Monitoring by Utilization of WSN Modules”, IJET, vol. 7, no. 3.34, pp. 168–171, Sep. 2018, doi: 10.14419/ijet.v7i3.34.18939.