D. K. Raghava Rao, S. Srinija, K. Hima Bindu, and D. Satish Kumar, “IOT based water level and quality monitoring system in overhead tanks”, IJET, vol. 7, no. 2.7, pp. 379–383, Mar. 2018, doi: 10.14419/ijet.v7i2.7.10747.