SINGH, DEVVRAT, et al. “Tractor-Drawn Broad Bed Furrow Seed Drill Machine to Overcome Moisture Stress for Soybean (Glycine Max) in Vertisols”. The Indian Journal of Agricultural Sciences, vol. 81, no. 10, Oct. 2011, https://doi.org/10.56093/ijas.v81i10.11256.