Hiroshi, Mitani
Escape from impasse : the decision to open Japan
International House of Japan, 2006
 Buku Teks
Trudgill, Peter
Dialect Matters: respecting vernacular language: columns from the Eastern Daily Press
Cambrigde University Press , 2016
 Buku Teks
Advances in spoken discourse analysis
edited by Malcolm Coulthard
Routledge, 1992
 Buku Teks
Halliday, M.A.K.
Spoken and written language
Oxford University Press, 1989
 Buku Teks
Chao, Yuen Ren, 1892-
Concise dictionary of spoken Chinese
Harvard University Press, 1962
 Buku Referensi