Fraser, Jill Andresky, author
Bloomberg Press, 2002
Buku Teks
Farida Lusiana Dewi, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2017
UI - Skripsi (Membership)
Kiyosaki, Robert T., 1947-, author
Plata Publishing, 2017
Buku Teks
Feitelberg, Susan, author
American Management Association, 2006
eBooks
Rhena Anggraeni, author
Fakultas Psikologi Universitas Indonesia, 2016
UI - Skripsi (Membership)