Columbia subject headings:
Harvard subject headings:
Botswana--Social conditions--21st century.
Germany--Social conditions--21st century.
Human services--Botswana--History--21st century.
Human services--Germany--History--21st century.
Poverty--Botswana--History--21st century.
Poverty--Germany--History--21st century.
Social problems--Botswana--History--21st century.
Social problems--Germany--History--21st century.
Social security--Botswana--History--21st century.
Social security--Germany--History--21st century.
Princeton subject headings:
Botswana--Social conditions--21st century.
Germany--Social conditions--21st century.
Poverty--Botswana.
Poverty--Germany.
Social problems--Botswana.
Social problems--Germany.