REDDY, M D, and K A KUMAR. “’Production Efficiency of Winter Season Sunflower (Helianthus Annuus) - Based Cropping Systems under Sri Ram Sagar Project Command Area of Andhra Pradesh”. The Indian Journal of Agricultural Sciences 69, no. 6 (January 28, 2013). Accessed October 27, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/26786.