Ateneo de Manila University, 2002
Buku Teks
Muhammad Iqbal, author
Fakultas Psikologi Universitas Indonesia, 2014
UI - Tesis (Membership)
Herman A. Karl, Lynn Scarlett, Juan Carlos Vargas-Moreno, Michael Flaxman, editor
[, Springer], 2012
eBooks
Knutson, Andie L., author
Russell Sage Foundation, 1971
Buku Teks
edited by Heinz Eulau
Atherton Press, 1969
Buku Teks