Kimble, Gregory A., editor
MIT Press, 1996
Buku Teks
edited by Sigmund Koch, David E. Leary
McGraw-Hill, 1985
Buku Teks
Lindgran, Henry Clay
John Wiley & Sons, 1966
Buku Teks
Maslow, Abraham H., author
Harper & Row, 1966
Buku Teks
Wickens, Christopher D., author
HarperCollins Publishers , 1992
Buku Teks