Amare, B. ., Abay, F. ., & Tsehaye, Y. . (2014). Evaluation of Sweet Potato (Ipomea batata l.) Varieties for Total Storage Root Yield in South and South East Zones of Tigray, Ethiopia. American Journal of Trade and Policy, 1(2), 74-78. https://doi.org/10.18034/ajtp.v1i2.366