Vijay Yadav, Sunil Tiwari, Pawan Upadhyay, Lalit Yadav, and Prof. Tilottama Deore. “Automatic Bottle Filling System”. International Journal of Advance Research in Engineering, Science & Technology, vol. 4, no. 3, Mar. 2017, pp. 308-12, https://ijarest.org/index.php/ijarest/article/view/918.