“Effect of intercropping of maize and cowpea on the yield, land productivity and profitability of components crops in Bena- Tsemay Woreda, Southern Ethiopia”, Int. J. Agril. Res. Innov. Tech., vol. 11, no. 2, pp. 147–150, Jan. 2022, doi: 10.3329/ijarit.v11i2.57268.