White, Kenneth R., author
AUPHA, 2010
Buku Teks
Lyles, Richard I
John Wiley , 1986
Buku Teks
Boss, R. Wayne, author
Addison-Wesley, 1989
Buku Teks
Ross, Austin, author
John Wiley & Sons, 1984
Buku Teks
by J. Dudley Herron [and others]
D.C. Heath, 1987
Buku Teks