Vinokur, Grigori Osipovich, 1896-1947
Cambrigde University Press , 2010
Buku Teks
Crowley, Tony
Routledge, 1996
Buku Teks SO
Noriko Takada
Macmillan, 1995
Buku Teks
Alfonso, Anthony
Sophia University LL Center of Applied Linguistics, 1980
Buku Teks
Miller, Roy Andrew
University Press, 1967
Buku Teks