5Fischer, O. On the Role Played by Iconicity in Grammaticalization Processes [ A]. In Nanny, M. & O. Fischer( eds. ). In Form Miming Meaning - Iconicity in Language and Literature [ C ]. Amsterdam: John Benjamins, 1999.
6Givon, T. Historical Syntax and Synchronic Morphology: An Archaeologist' s Field Trip[ J ]. Chicago Linguistic Society, 1971, (7).
7Givon, T. On Understanding Grammar [ M ]. New York: Academic Press, 1979.
8Heine, B. Auxiliaries : Cognitive Forces and Grammaticalization[M]. OUP, 1993.
9Hopper, P. J. & E. C. Traugott. Grammaticalization[M]. CUP, 1993.
10Johnson, M. The Body in the Mind: The Bodily basis of Meaning, Imagination, and Reason[ M]. Chicago: University of Chicago Press, 1987.