SANJEEV KUMAR, SHIVA DHAR, ASHOK KUMAR, and DILEEP KUMAR, “Yield and nutrient uptake of maize (Zea mays)wheat (Triticum aestivum) cropping system as influenced by integrated potassium management”, IJA, vol. 60, no. 4, pp. 511–515, Oct. 2001, doi: 10.59797/ija.v60i4.4509.