Adeke Dini Fahransa, author
Fakultas Psikologi Universitas Indonesia, 2008
UI - Skripsi (Open)
Betten, Lammy
Longman, 1998
Buku Teks
Anne Restu Latifah Hanum, author
2010
UI - Tesis (Membership)
Temes, Roberta, author
American Management Association, 2009
eBooks
Artikel Jurnal