Prentice-Hall, 1980
Buku Teks
Koontz, Harold, author
McGraw-Hill Book , 1964
Buku Teks
edited by Julius Miklowitz and Jan D. Achenbach
John Wiley & Sons, 1978
Buku Teks
Mosley, W.H. (William Henry), author
Macmillan, 1984
Buku Teks
Williams, Alan, author
Kaplan Education, 2005
Buku Teks