G.Pavithra, K. Ponsubhadharsni, E. Sathyapriya, and A. Manjunath. “Solar Based Automatic Irrigation System”. International Journal of Intellectual Advancements and Research in Engineering Computations, vol. 6, no. 1, Mar. 2018, pp. 180-3, https://ijiarec.com/ijiarec/article/view/432.