BIJAN K. MANDAL, SANJOY SAHAI, and TAPAN K. JANA, “ Yield performance and complementarity of rice (Oryza sativa) with greengram (Phaseolus radiatus), blackgram (Phaseolus mungo) and pigeonpea (Cajanus cajan) under different rice-legume associations”, IJA, vol. 45, no. 1, p. 45_1 , Oct. 2001, doi: 10.59797/ija.v45i1.3349.