H.N.TRIPATHI, SUBASH CHAND, and A.K. TRIPATHI, “Biological and economical feasibility of chickpea (Cicer arietinum) + Indian mus- tard (Brassicajuncea) cropping systems under varying levels of phosphorus”, IJA, vol. 50, no. 1, pp. 31–34, Oct. 2001, doi: 10.59797/ija.v50i1.5054.