Faisal Djamal, author
UNDP, 2009
Buku Referensi
edited by Sarah Gehlert; Teri Arthur Browne
John Wiley & Sons, 2012
Buku Teks
edited by Pieter J.D. Drenth, Henk Thierry, Charles J. de Wolff
Routledge, 1998
Buku Referensi
Gary N. Powell, editor
Sage Publications, 1999
Buku Referensi
edited by Pieter J.D. Drenth, Henk Thierry, Charles J. de Wolff
Psychology Press, 1998
Buku Referensi