Farras Naufal
Fakultas Teknik Universitas Indonesia, 2015
UI - Skripsi Membership
International Labour Office,, 1966
Buku Teks
Couchman, Charles B.
Garland Pubishing, 1982
Buku Teks
Althea Nabila
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2018
UI - Tesis Membership
Ketz, J. Edward
John Wiley & Sons, 2003
Buku Teks