Singh, AK, and MM Syamal. “Effect of Rhizobium Inoculation and Phosphorus Application on Protein and Carbohydrate Content of Cowpea [Vigna Unguiculata (L.) Walp]”. Vegetable Science, vol. 38, no. 01, June 2011, pp. 117-8, https://doi.org/10.61180/.