Yalew Endaweqe Mulu. Yemirmir meseretawi merihochina ategebaberi / Yalew Endaweqe Mulu. - 3rd ed. - Addis Ababa : Commerce press, c2009. - v, 485 p ; 23 cm. Includes bibliographical references. ISBN: paperback Subjects--Topical Terms: Research writing. Dewey Class. No.: ETH 001.42 Yal 2009