Oakley, Peter
International Labour Office, 1991
Buku Teks
Locke, Lawrence F.
Sage, 2000
Buku Teks
Locke, Lawrence F.
Sage, 1987
Buku Referensi
Locke, Lawrence F.
Sage, 2014
Buku Teks
Edited by Farhad B. Naini, Daljit S. Gill
Wiley-Blackwell, 2017
Buku Teks