Gardner, Richard A.
Jason Aronson Inc., 1993
Buku Teks
edited by Matthew McKay and Kim Paleg
New Harbinger Publication , 1992
Buku Teks
The Free Press, 1982
Buku Teks
R. Yuniar
1990
UI - Skripsi (Membership)
Meity Farida Sita Devi
1984
UI - Skripsi (Membership)