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Yule, D F and Cogle, A L and Smith, G D and Rao, K P C and George, P J (1991) Soil management of alfisols for water conservation and utilization. Journal of Indian Water Resources Society, 11 (4). pp. 10-13. ISSN 0970-6984
Bajracharya, R M and Cogle , A L and Lal, R and Rao, K P C and Smith, G D and Yule, D F (1996) Surface crusting as a constraint to sustainable management on a tropical Alfisol: I. Soil physical properties. Journal of Sustainable Agriculture, 8 (4). pp. 25-44. ISSN 1044-0046