John Wiley & Sons, 1976
Buku Teks
Hidayattul Hendra, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2016
UI - Tesis (Membership)
Brenner, Robert L., author
International Human Resources Development Corp, 1984
Buku Teks
Carrington, Richard
Penguin Books, 1958
Buku Teks
Fitriyanie Bren, author
2011
UI - Tesis (Open)