edited by Albert H. Marckwardt
National Council of Teachers of English, 1968
Buku Teks SO
Richards, Jack C.
Cambridge University Press, 1994
Buku Teks SO
Christie, Francis
Oxford University Press, 1989
Buku Teks SO
Mackey, William Francis
Longman, 1978
Buku Teks SO
Richards, Jack C.
Cambridge University Press, 1985
Buku Teks SO