Natol Bakala, E. E., and T. T. Yonas Shimalis. “Determination of Appropriate Maize Haricot Bean Arrangement in Moisture Stress Areas of Borana, Southern Ethiopia”. Journal of Ecobiotechnology, vol. 9, Aug. 2017, pp. 18-23, doi:10.25081/jebt.2017.v9.3447.