Mpairwe, D. R., E. N. Sabiiti, N. N. Ummuna, A. Tegegne, and P. Osuji. “Effect of Intercropping Cereal Crops With Forage Legumes and Source of Nutrients on Cereal Grain Yield and Fodder Dry Matter Yields”. African Crop Science Journal, vol. 10, no. 1, Jan. 2002, doi:10.4314/acsj.v10i1.27559.