????????, ???????. 1980. ??????? ????? ?? ???????????? ??????????? ? ?????? ?? ??????? ? ????????? ?? ???????????? ???????? ??. ?, ??????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 5. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 80?82.

????????, ???????. 1980. ?????????? ??????????? ???????? ?? ??????? ?? ????????? ?? ????? ?????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 5. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 125?126.

????????, ???????. 1977. ???????????? ? ????????? ? ????? ???? ? ?????? ?? ???????? ?? ??????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 2. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 235?236.