Hodgetts, Richard M., author
Irwin McGraw-Hill, 200
Buku Teks
Yoffie, David B.
McGraw-Hill , 1994
Buku Teks
Rodriguez, Rita M., author
Prentice-Hall, 1979
Buku Teks
Rodriguez, Rita M., author
Prentice-Hall, 1984
Buku Teks
Rodriguez, Rita M., author
Prentice-Hall, 1976
Buku Teks