Amrik Singh , J. S. Bhalla and Dharminder Singh, “Knowledge Level of Farmers About Recommended Production Techniques of Bt Cotton in Punjab”, Indian J Ext Edu, vol. 53, no. 1, pp. 100–103, Mar. 2017, Accessed: Jun. 25, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/IJEE/article/view/143924