Carson, Rachel L.
Oxford University Press, 1967
Buku Teks
Stowe, Keith S., 1943-
John Wiley & Sons, 1996
Buku Teks
Apel, John R.
Academic Press, 1987
Buku Teks
Stowe, Keith S., 1943-
John Wiley & Sons, 1979
Buku Teks
Gorsky, N
Foreign Languages Publishing House, 1961
Buku Teks