Nadia Luthfi Khairunnisa, author
Fakultas Psikologi Universitas Indonesia, 2020
UI - Skripsi (Membership)
Guslin, author
2019
UI - Tesis (Membership)
E & FN Spon, 1998
Buku Teks
Scott, Gini Graham, author
American Management Association, 2008
eBooks
Ichsan Malik, author
TIFA, 2007
Buku Teks