Richards, Jack C.
Cambridge University Press, 2006
Buku Teks
Richards, Jack C.
Cambridge University Press, 1994
Buku Teks
Richards, Jack C.
Cambridge University Press, 1985
Buku Teks
Richards, Jack C.
Cambridge University Press, 1994
Buku Teks
Halliday, M.A.K.
Longman, 1966
Buku Teks