V. P. CHAHAL, D. S. YADAV, S. K. THAKUR, and P. SOOD, “Assessing knowledge gaps of para extension workers for improving their capacity in dissemination of farm technology to farmers in Mandi district of Himachal Pradesh, India”, Indian J Agri Sci, vol. 85, no. 2, pp. 229–223, Feb. 2015, doi: 10.56093/ijas.v85i2.46515.