Garg, Sunil, D S Taneja, Rajan Aggarwal, Samanpreet Kaur, and N I Jamir. 2007. “Effect of Passage Smoothness on the Hydraulic Performance of Centrifugal Pumps”. Journal of Agricultural Engineering 44 (2). https://epubs.icar.org.in/index.php/JAE/article/view/14519.