Churcill, Craig F., author
International Labour Office, 2003
Buku Teks
Christofer Ruminsar, author
2017
UI - Skripsi (Membership)
Albert Budy, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2021
UI - Tesis (Membership)
Boileau, Wallis, author
Irwin , 1958
Buku Teks
Rufenacht, Nils, author
[Springer, ], 2012
eBooks