Columbia subject headings:
Hadrami (Arab tribe)--Migrations.
Hadrami (Arab tribe)--Saudi Arabia--Hejaz--History.
Hejaz (Saudi Arabia)--Economic conditions.
Hejaz (Saudi Arabia)--Intellectual life.
Yemenis--Saudi Arabia--Hejaz--History.
Harvard subject headings:
Education--Saudi Arabia--History.
Saudi Arabia--Commerce--History.
Yemenis--Intellectual life.
Yemenis--Saudi Arabia--History.
Princeton subject headings:
Hadrami (Arab tribe)--Migrations.
Hadrami (Arab tribe)--Saudi Arabia--Hejaz--History.
Hejaz (Saudi Arabia)--Economic conditions.
Hejaz (Saudi Arabia)--Intellectual life.
Yemenis--Saudi Arabia--Hejaz--History.