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Burney, J and Woltering, L and Burke, M and Naylor, R and Pasternak, D (2010) Solar-powered drip irrigation enhances food security in the Sudano–Sahel. Proceedings of the National Academy of Sciences of the United States of America (PNAS), 107 (5). pp. 1848-1853.
Reddi, K C S and Hussain, M M and Krantz, B A (1980) Effect of nitrogen level and spacing on sorghum intercropped with pigeonpea and greengram in semi-arid lands. Indian Journal of Agricultural Sciences, 50 (1). pp. 17-22. ISSN 0019-5022
Shanower, T G and Gutierrez, A P and Wightman, J A (1995) Effect of Simulated Rainfall on Eggs and Larvae of the Groundnut Leafminer, Aproaerema modicella. International Arachis Newsletter, 15 (1). pp. 55-56.