Daniels, John D., author
Addison-Wesley, 1994
Buku Teks
Yoffie, David B.
McGraw-Hill , 1994
Buku Teks
Ajami, riad A, author
Routledge, 2015
Buku Teks
Hodgetts, Richard M., author
McGraw-Hill, 1991
Buku Teks
Farmer, Richard N., author
Dickinson, 1968
Buku Teks