Hammersley, Martyn, author
Open University Press, 1990
Buku Teks
Gunanto, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2002
UI - Tesis (Membership)
Jubaedi, author
Fakultas Psikologi Universitas Indonesia, 2005
UI - Tesis (Membership)
Drummond, Helga, author
Gramedia Pustaka Utama, 1995
Buku Teks
Anisa Rahmadani, author
Fakultas Psikologi Universitas Indonesia, 2017
UI - Tesis (Membership)