Singh, Sukhwinder, Parveen Kumar, Manjit Singh, Dhruv Kumar, B P Singh, and S K Pandey. 2013. “DEVELOPMENT AND TESTING OF A WIDE ROW RIDGER, INTER ROW CULTIVATOR AND DIGGER FOR NUCLEUS SEED POTATO PRODUCTION”. Potato Journal 38 (2). https://epubs.icar.org.in/index.php/PotatoJ/article/view/32368.