1Richterich,R.Analytical Classification of the Cat-egories of Adults Needing to Learn Foreign Languages[].Systems Development in Adult Language Learning.1973
2Richards Jack C,Rodgers Theodore S.Approaches and Methods in Language Teaching[]..1986
3Munby John.Communicative Syllabus Design:A Sociolinguistic Model forDesigning the Content of Purpose-Specific Language Programmes[]..1978
4Hutchinson T,Waters A.English for Specific Purposes: A learning-centered Approach[]..1987
5R. West.Needs analysis in language teaching[].Language Teaching.1994
6Chambers,F.A Re-evaluation of Needs Analysis[].ESP Journal.1980
7Schutz, Noel W,and Bruce L . Derwing.The Problem of Needs Assessment in English for Specific Purposes: Some Theoretical and Practical Considerations[].Languages for Specific Purposes: Program Design and Evaluation.1981
