?????????, ?????, ??? . 1983. ????? ???????????? ????????? ?? ???????????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 8. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 124?126.

?????????, ??????? ?, ????? ? ?????????, ?????  ????????? & ?????  ???????, ???-?? . 1983. ????????????? ?????? ???????? ???????????????? ?? ?????????? ???????? ??????? ???????????? ??????? ????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 8. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 28?35.

?????????, ?????, ??? . 1982. ????????? ? ????????? ? ??????????? ????????? {(? ??????, ?????????? ? ??????? ????)}. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 7. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 13?20.

?????????, ?????, ??? . 1977. ???????? ??????? ?????????????? ???? ? ?????????? ????? ?? ??????? ????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 2. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 71?86.