Butler, Timothy
Serambi Ilmu Semesta., 2007
Buku Teks
Anderson, Maureen, 1958- , author
American Management Association, 2009
eBooks
Fitri Nuriya Santy, author
Fakultas Ilmu Keperawatan Universitas Indonesia, 2011
UI - Tesis (Open)
Bernadetha Lista Yuniar Ekandri, author
Fakultas Psikologi Universitas Indonesia, 2006
UI - Tesis (Membership)
Mirza Annisa Izati, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Skripsi (Membership)