Cramer, Duncan, 1948-, author
Open University Press, 2003
Buku Teks
Petrus Paryono, author
Andi, 1996
Buku Teks
Green, Samuel B., author
Prentice-Hall, 2000
Buku Teks
edited by Roger Penn, Damon Berridge
Sage, 2013
Buku Teks
Kiess, Harold O.
Allyn And Bacob, 1989
Buku Teks