Seyfu Ketema, 1997. Promoting the conservation and use of underutilized and neglected crops, Vol. 12, Biodiversity International publ., Rome

Seyfu Ketema, 1997. Tef - Eragrostis tef (Zucc.) Trotter. Promoting the conservation and use of underutilized and neglected crops, Vol. 12, Biodiversity International publ., Rome