1. Doughty, P. S.The Relevance of Linguistics for the Teacher of English, Longmans Green and Co Ltd, 1968.
2. Vygotsky, L. S.Thought and Language, M.I.T. Press, 1962.
3. Dixon, John,Growth Through English, N.A.T.E., 1967.
4. Wilkinson, A. M.Spoken English, Univ. Birmingham, 1965, for example.
5. Fraser, Hugh, ‘The Teaching of Writing’,Applied Linguistics and the Teaching of English, Longmans, 1969.