Negalur, R. B., A. S. Halepyati, and A. S. Channabasavanna. 2016. “Productivity and Economics of Machine Transplanted Rice (Oryza Sativa L.) As Influenced by Puddling Methods and Spacing”. International Journal of Bio-Resource and Stress Management 7 (Oct, 5):984-89. https://www.ojs.pphouse.org/index.php/IJBSM/article/view/974.