M. Nkongolo, et al. “Organic Manure on the Crop Yield of Corn (Monoculture in Association With Cowpea) in Ngandajika Region in Central Democratic Republic of Congo: A Comparative Analysis”. Research Highlights in Agricultural Sciences Vol. 3, Oct. 2022, pp. 88-102, doi:10.9734/bpi/rhas/v3/2707C.