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???????, ????, ??? . 1999. ?????? ????? ? ???????? ?????????? ????????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 24. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 175?176.

???????, ????, ??? . 1998. ????????? ?? ?????????????? ??????? ?? ????????? ???????? ?????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 32. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 237?238.

???????, ????, ??? . 1998. ??? ? ???????? ?????? ??????? ?? ?????????? ? ?????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 32. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 202?204.

???????, ???? & ???????  ??????, ???-?? . 1979. ????? ?????????? ??????????? ?? ????????????, ????? ?79. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 4. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 60?62.