Zehle, Jana. Early intervention for children with special needs : manual for students, teachers and lecturers in the field of special needs education / Jana Zehle. - Ethiopia : Addis Ababa University and Haramaya University, c2011. - 164 p. ; 27 cm. Includes bibliographical references and indexes. ISBN: 9789994499670 (paperback) Dewey Class. No.: ETH 362.4 Zeh 2011