Hodgetts, Richard M., author
Harcourt College Publishers, 2001
Buku Teks
Hodgetts, Richard M., author
John Wiley & Sons, 2002
Buku Teks
Schollhammer, Hans, author
John Wiley & Sons, 1979
Buku Teks
Macfarlane, William N., author
McGraw-Hill, 1977
Buku Teks
Steinhoff, Dan, author
McGraw-Hill, 1982
Buku Teks