Columbia subject headings:
Employee rights--Vietnam--Periodicals.
Labor supply--Vietnam--Periodicals.
Labor unions--Vietnam--Periodicals.
Working class--Vietnam--Periodicals.
Harvard subject headings:
Employee rights--Vietnam--Periodicals.
Labor supply--Vietnam--Periodicals.
Labor unions--Vietnam--Periodicals.
Labor--Vietnam--Statistics--Periodicals.
Working class--Vietnam--Periodicals.
Princeton subject headings:
Employee rights--Vietnam--Periodicals.
Labor supply--Vietnam--Periodicals.
Labor unions--Vietnam--Periodicals.
Periodicals.
Working class--Vietnam--Periodicals.