Prasad, J, Tarun Kapur, N S Sandhar, N Majumdar, P G Patil, S K Shukla, B N Jaiswal, and A B Patil. 2007. “Performance Evaluation of Spindle Type Cotton Picker”. Journal of Agricultural Engineering 44 (1). https://epubs.icar.org.in/index.php/JAE/article/view/14448.