Neerun, Neerun, and Sundara Rao. “Interrelationship between Azotobacter and Clostridium in Increasing The Yield of Paddy and Nitrogen Uptake”. Agriculture and Natural Resources 5, no. 1 (January 1, 1965): 10–15. accessed September 18, 2026. https://li01.tci-thaijo.org/index.php/anres/article/view/240591.