V Ravikumar, K Renuka, and CR Ranganathan. “Design of Tapered Drip Irrigation Pipes Non-Uniform Slopes”. Journal of Agricultural Engineering (India) 40, no. 3 (September 30, 2003): 63–73. Accessed June 4, 2026. https://pub.isae.in/index.php/jae/article/view/3687.