Lemesso, B., Teklemadhin, W., & Tujuba, O. (2006). History: Student text : grade 11 (Revised Edition.). Kuraz International Publisher and Educational Works Consultant Enterprise.
Citazione stile Chigago Style (17a edizione)Lemesso, Berhanu, Wondu Teklemadhin, e Olgira Tujuba. History: Student Text : Grade 11. Revised Edition. Addis Ababa: Kuraz International Publisher and Educational Works Consultant Enterprise, 2006.
Citatione MLA (9a ed.)Lemesso, Berhanu, et al. History: Student Text : Grade 11. Revised Edition. Kuraz International Publisher and Educational Works Consultant Enterprise, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.