Rosenblatt, S. Bernard
Houghton Mifflin, 1973
Buku Teks
Steinhoff, Dan
McGraw-Hill, 1979
Buku Teks
Cunningham, William H.
South-Western, 1984
Buku Teks
Gates, Bill
Warner Books, 1999
Buku Teks
Drucker, Peter Ferdinand, 1909-2005
The New American Library, 1964
Buku Teks