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Sahrawat, K L (1975) Effects of Pesticides on Nitrogen Fixation. Pesticides. pp. 21-23.
Sahrawat, K L and Parmar, B S (1975) Alcohol Extract of Neem (Azadirachta indica L.) Seed as Nitrification Inhibitor. Journal of the Indian Society of Soil Science, 23 (1). pp. 131-134. ISSN 0019-638X
Ryan, J G and Subrahmanyam, K V (1975) An Appraisal of the Package of Practices Approach in Adotion of Modern Varieties. Documentation. International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Telangana.