?????????, ????. 1996. ?????? ???? ??????? (1923?1996). ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 21. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 156?159.

?????????, ????. 1983. ???????? ??????. ?????????????? ??????????? / ???????????????? ??????????? / Contrastive linguistics 8. (?????????????? ??????????? / ???????????????? ??????????? / Contrastive Linguistics). 130?132.