KUMPAWAT, B S. “Integrated Nutrient Management in Blackgram (Vigna Mungo) and Its Residual Effect on Succeeding Mustard (Brassica Juncea) Crop*”. The Indian Journal of Agricultural Sciences, vol. 80, no. 1, Jan. 2011, https://epubs.icar.org.in/index.php/IJAgS/article/view/2825.