Rakesh Kumar , P. S. Slathia , Rajinder Peshin , S. K. Gupta and M. S. Nain. “A Test to Measure the Knowledge of Farmers about Rapeseed Mustard Cultivation”. Indian Journal of Extension Education, vol. 52, no. 3&4, Dec. 2016, pp. 157-9, https://epubs.icar.org.in/index.php/IJEE/article/view/144136.