P. RAMESH, S.N. SUDHAKARA BABU, MD. A. AZIZ QURESHI, and T. NAGENDRA RAO, “Effect of conservation agricultural and nutrient management practices on castor (Ricinus communis)sorghum (Sorghum bicolor) cropping system in rainfed Alfisols”, IJA, vol. 58, no. 2, pp. 168–174, Oct. 2001, doi: 10.59797/ija.v58i2.4189.