R.Theodore Clark,Jr
Labor relations law in the public sector Selected stateand federal statutes
The michie compony, 1991
 Buku Teks
Luhur Selo Baskoro
Labor productivity and foreign direct investment in the Indonesian manufacturing sector
Faculty of Economic and Business UIN Syarif Hidayatullah, 2019
 Artikel Jurnal
Edwards, Harry T.
Labor relations law in the public sector : cases and materials / Harry T. Edwards, R. Theodore Clark, Jr., Charles B. Craver.
The Michie Company, 1991
 Buku Teks
Edwards, Harry T.
Labor relations law in the public sector Selected stateand federal statutes: Statutory appendix/ Harry T. Edwards, R. Theodore Clark, Jr. , Charles B. Craver
The michie compony, 1991
 Buku Teks
Reynolds, Lloyd G.
Labor economics and labor relations
Prentice-Hall, 1998
 Buku Teks