Brandon/Systems Press, 1970
Buku Teks
Brand, Kolman W., 1933-, author
Kent Publishing, 1986
Buku Teks
Stone, M. David
Prentice-Hall, 1984
Buku Teks
Carver, Keith R., author
Wiley, 1983
Buku Teks
Carver, Keith R., author
John Wiley & Sons, 1983
Buku Teks