????????, ???????, ??? . 1990. ???????????? ?? ????????? ?? ?????? ??. ????????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 15. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 91?104.

????????, ???????, ??? . 1988. ????? ?????? (1919?1987). ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 13. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 128.

????????, ??????? & ????  ?????????, ???-?? . 1981. ???????-???????? ??????? ?????????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 6. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 161?180.