Macmillan, 1981
Buku Referensi
Wilson, Kevin, 1958- , author
American Management Association;, 2010
eBooks
Wilson, Kevin, author
American Management Association, 2010
eBooks
Farah Ainy, author
2018
UI - Tesis (Membership)
Ivy Felissa Haris, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2021
UI - Tugas Akhir