DAS, ANIT, et al. “Soil Copper and Manganese Availability to Wheat (Triticum Aestivum) As Affected by Long-Term Fertilization in an Inceptisol”. The Indian Journal of Agricultural Sciences, vol. 92, no. 12, Dec. 2022, pp. 1506–1510, https://doi.org/10.56093/ijas.v92i12.110425.