R.B. TIWARI et al. 2001. Effect of weed-control measures on yield, weed control, economics and energetics of rice (Oryza sativa)-wheat (Triticum aestivum) cropping system. Indian Journal of Agronomy. 58, 4 (Oct. 2001), 465–468. DOI:https://doi.org/10.59797/ija.v58i4.4251.