???????, ??????, ??? . 1987. ??-????? ??????? ?? ?????? ??????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 12. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 117?119.

???????, ??????, ??? . 1987. ????? ???????????? ??????? ?? ??????: ?????? ??????????????? ?? ?????? ???? ? ???????? ?? ???????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 12. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 125? 126.

???????, ??????, ??? . 1983. ??-????? ??????? ?? ????? ??????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 8. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 135.