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M. Hanna Kumari, M. Kalyana Chakravarthi, K. Sarjan Rao, K. Sakunthala Devi, Muralidhar Metta. Constraints perceived by dairy farmers of irrigated and rainfed areas of Visakhapatnam district of Andhra Pradesh. Indian J. Anim. Prod. Manage. 2022;36(3-4):45-49. Accessed October 29, 2025. https://epubs.icar.org.in/index.php/IJAPM/article/view/115739