Aristya Puspita Adi Wardhani, author
Fakultas Psikologi Universitas Indonesia, 2019
UI - Tesis (Membership)
Suprapti Slamet I.S., author
Penerbit Universitas Indonesia (UI-Press), 2008
Buku Teks
Richards, Thomas William
McGraw-Hill, 1946
Buku Teks
Helen Beinart, Paul Kennedy, Susan Llewelyn, editor
BPS Blackwell, 2009
Buku Teks
Nietzel, Michael T., author
Prentice-Hall, 1987
Buku Teks