Goldish, Dorothy M., author
Macmillan, 1990
Buku Teks
Fowler, F. Parker, author
Wiley, 1962
Buku Teks
Cooke, Nelson M., author
McGraw-Hill, 1982
Buku Teks
Cooke, Nelson M., author
McGraw-Hill, 1987
Buku Teks
Singer, Bertrand B., author
McGraw-Hill, 1978
Buku Teks