Petrus Paryono
Andi, 1996
Buku Teks
Green, Samuel B.
Prentice-Hall, 2000
Buku Teks
edited by Roger Penn, Damon Berridge
Sage, 2013
Buku Teks
Kiess, Harold O.
Allyn And Bacob, 1989
Buku Teks
edited by L. Andries van der Ark
Lawrence Erlbaum Associates, 2005
Buku Teks