C.Karthikeyan, J.Poornima, P.Saranya, P.Sivasakthi, and S.Sivasakthi. “Fabrication of Solar Powered Automatic Seed Sowing Machine”. International Journal of Intellectual Advancements and Research in Engineering Computations, vol. 7, no. 2, June 2019, pp. 2216-20, doi:10.61096/ijiarec.v7.iss2.2019.2216-2220.