Cook, Vivian.1969. The Analogy between First and Second Language Learning . IRAL Vol. 7. pp. 207-216.
2.
Corder, S.P.1967. The Significance of Learners' Errors. IRAL Vol. 5. No. 4. pp. 161-169.
3.
Duskova, L.1969. On Sources of Errors in Foreign Language Learning . IRAL Vol. 7. pp. 11-36.
4.
Fries, Charles C.1940. American English Grammar. New York : Appleton-Century-Crofts, Inc. p. 20.
5.
George. H.V.1972. Common Errors in Language Learning. Rowley, Massachusetts: Newbury House Publishers. p. 3.
6.
Richards, J.C.1971. A Non-Contrastive Approach to Error Analysis. English Language Teaching. Vol. 25. No 3. pp. 204-219.
7.
— 1973. Error Analysis and Second Language Strategies. Focus on the Learner. (Eds.) Jack C Richards and John W Oller, Jr., Massachusetts: Newbury House Publishers. pp. 114-135.
8.
Strevens, P.1965. Papers in Language and Language Teaching. London: Oxford University Press. p. 8.
9.
Wyatt, Victor.1973. An Analysis of Errors in Composition Writing. English Language Teaching. Vol. 27. pp. 177-186.