Columbia subject headings:
Industrial management--United Arab Republic.
Labor productivity--United Arab Republic.
Supervisors--United Arab Republic.
Vocational education--United Arab Republic.
Harvard subject headings:
Industrial management--United Arab Republic.
Labor productivity--United Arab Republic.
Supervisors--United Arab Republic.
Vocational education--United Arab Republic.
Princeton subject headings:
Industrial management--United Arab Republic.
Labor productivity--United Arab Republic.
Supervisors--United Arab Republic.
Vocational education--United Arab Republic.