REDDY MD, KUMAR KA. ’Production efficiency of winter season sunflower (Helianthus annuus) - based cropping systems under Sri Ram Sagar Project command area of Andhra Pradesh. Indian J Agri Sci. 2013;69(6). Accessed October 27, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/26786