Gould, William B., IV
A primer on American labor law
MIT Press, 1982
 Buku Teks
Labor Relations law/ American Bar Association
Committee Reports, 1974
 Buku Teks
Law and society in contemporary japan american perspectives
edited by John O. Haley
Kendall / Hunt, 1988
 Buku Teks
Japan labor code 1952
Ministry of Labor, 1953
 Buku Teks
Japan Labor Issues
The Japan Institute for Labour Policy and Training, 2018
 Majalah, Jurnal, Buletin