Irwan Dewanto
Fakultas Psikologi Universitas Indonesia, 2006
UI - Tesis (Membership)
Pluto Press , 2003
Buku Teks
Antje Fluchter
Springer, 2012
eBooks
Stallard, Michael Lee
VA ATD Press, 2015
Buku Teks
English, Anthony
Department of Environment and Conservation, 2005
Buku Teks