D. SINGH, A. K. VYAS, G. K. GUPTA, R. RAMTEKE, and I. R. KHAN, “Tractor-drawn broad bed furrow seed drill machine to overcome moisture stress for soybean (Glycine max) in Vertisols”, Indian J Agri Sci, vol. 81, no. 10, Oct. 2011, doi: 10.56093/ijas.v81i10.11256.