Young, Hugh D., 1930-, author
Addison-Wesley, 1998
Buku Teks
Dent, Edward J
Penguin Books, 1949
Buku Teks
Nawy, Edward G., author
Prentice-Hall, 1996
Buku Teks
Nawy, Edward G., author
Prentice-Hall, 1996
Buku Teks
Sears, Francis W. (Francis Weston), 1898-1975, author
Addison-Wesley , 1982
Buku Teks