1.          Lee Hikyoung. Korean Americans as speakers of English: the acquisition of general and regional features. 2000, University of Pennsylvania.

2.          Matras Yaron. Utterance modifiers and universals of grammatical borrowing,1998.

3.          Richards, Jack C.. Social factors, interlanguage, and language learning, 1972

4.          Thomason, Sarah and Terrence Kaufman. 1988. Language Contact, Creolization, and Genetic Linguistics. Berkeley: U. of California Press.

5.          www.wikipedia.org

6.          journals.cambridge.org/action/displayJournal

7.          dic.academic.ru/dic.nsf/cide/17900/Bilingualism

Introduction

Chapter I Language Contact

          Chapter II Billingualism

Conclusion

Bibliography