Pascale, Richard T.
Simon & Schuster, 1981
Buku Teks
Saunders, Anthony, author
McGraw-Hill, 2008
Buku Teks
Saunders, Anthony, author
McGraw-Hill Education, 2014
Buku Teks
Saunders, Anthony, author
McGraw-Hill, 1997
Buku Teks
Reiner, Laurence E., author
Prentice-Hall, 1972
Buku Referensi