Swetha, D., P. Laxminarayana, G. E. C. H. Vidyasagar, S. Narender Reddy, and Harish Kumar Sharma. 2020. “Impact of Secondary and Micronutrients on Productivity and Quality of Bt Cotton: A Review”. International Journal of Economic Plants 7 (May, 2):091-093. https://ojs.pphouse.org/index.php/IJEP/article/view/4634.