R.N. Padaria, Baldeo Singh, Jitendra Kumar, B.M. Sharma and M. Pathak. “Farmer Participatory Vatidation of Indigenous Technical Knowledge in Agriculture”. Indian Journal of Extension Education, vol. 45, no. 1&2, June 2009, pp. 1-9, https://epubs.icar.org.in/index.php/IJEE/article/view/144403.