Ulasi, J. I., R. Okim, and E. Rivers. “High Yield and Pest Resistant Genotypes of Sweet Potato (Ipomoea Batatas (L.) Lam.) for Cultivation in Umudike, Southeastern, Nigeria”. Archives of Agriculture and Environmental Science, vol. 6, no. 4, Dec. 2021, pp. 563-9, doi:10.26832/24566632.2021.0604020.