GUPTA, D K, et al. “Global Warming Potential of Rice (Oryza Sativa)-Wheat (Triticum Aestivum) Cropping System of the Indo-Gangetic Plains”. The Indian Journal of Agricultural Sciences, vol. 85, no. 6, June 2015, pp. 807-16, https://doi.org/10.56093/ijas.v85i6.49243.