Fortune
McGraw-Hill, 1956
Buku Teks
Taqiyyah, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi Membership
Anggi Hazella, author
Fakultas Teknik Universitas Indonesia, 2016
UI - Skripsi Membership
Freedman, Paul, author
Public Affairs Press, 1950
Buku Teks
Jonathan Sarwono, author
Graha Ilmu, 2006
Buku Teks