1. Abebe, M. (2011). Extensive Reading: Perception and Practice. Preparatory program in Focus. Institutional Repository. Addis Ababa.
2. The impact of simplified and interactionally modified input on reading comprehension of Iranian EFL learners;Anani, Sarab MR;Journal of Human Sciences,2008
3. The use of authentic materials in the teaching of reading;Berardo SA;The Reading Matrix,2006
4. Brewer, B. (2008). Effects of lexical simplification and modification on ESL readers’ locallevel perceived comprehension. Unpublished M.A. thesis. Brigham Young University.
5. Brown, D. (2003). Language assessment: Principles and classroom practice.Longman.