S. Aiswarya, Monika Wason, R. N. Padaria, D. U. M. Rao, R. Gills, Priti Priyadarshini and Bishal Gurung. “Training Need Assessment for Core Competencies of Agricultural Extension Personnel in Kerala: An Analytical Study”. Indian Journal of Extension Education, vol. 54, no. 3, Sept. 2018, pp. 142-5, https://epubs.icar.org.in/index.php/IJEE/article/view/143993.