Columbia subject headings:
Employees--Japan--Social conditions--21st century.
Part-time employment--Japan--History--21st century.
Temporary employees--Japan--History--21st century.
Working class--Japan--History--21st century.
Harvard subject headings:
Employees--Japan.
Part-time employment--Japan
Temporary employees--Japan.
Working class--Japan
Princeton subject headings:
Employees--Japan.
Part-time employment--Japan.
Temporary employees--Japan.
Working class--Japan.