Buku Teks
Rah Madya Handaya
2007
UI - Tesis (Membership)
Mann, Leon
Sydney John Wiley & Sons 1969,
Buku Teks
Rustam Hadi
Fakultas Psikologi Universitas Indonesia, 2002
UI - Tesis Membership
Yasti Yulianti
Fakultas Psikologi Universitas Indonesia, 2003
UI - Tesis Membership