Shuaibu, Y. M., S. . M. U., and I. Y. “Effects of Phosphorus Fertilization and Plant Spacing on Herbage Yield of Groundnut (Arachis Hypogaea L.) in Bauchi State, Nigeria”. Journal of Bio-Agriculture, vol. 1, no. 1, Nov. 2020, pp. 37-45, doi:10.37256/jba.112021555.