Artikel Jurnal
Schargel, Franklin P., author
Eye on Education, 1994
Buku Referensi
Astrid Rahadianty, author
Fakultas Psikologi Universitas Indonesia, 2018
UI - Skripsi (Membership)
Mintzberg, Henry, author
Prentice-Hall, 1979
Buku Teks
Silitonga, Donal D., author
Universitas Indonesia, 2009
UI - Tesis (Open)