Gershoy, Leo
Appleton Century Crofts, 1938
Buku Teks
Thompson, J.M.
Basil Blackwell, 1955.
Buku Teks
Carlyle, Thomas
E.P. Dutton, 1955
Buku Teks
Kemp, Herman C.
KITLV Press, 1990
Buku Referensi
Brogan, D.W. (Denis William)
Harper & Brothers, 1957
Buku Teks