Terry, George Robert, author
Learning Systems, 1981
Buku Teks
Hilman, A. Douglas, author
Dryden Press , 1986
Buku Teks
Kochanek, Richard F., author
Harcourt Brace Jovanovich, 1990
Buku Teks
Geisst, Charles R., author
Macmillan, 1993
Buku Teks
Allen, Steven, author
John Wiley & Sons, 2013
Buku Teks