Columbia subject headings:
Agriculture and state--Sudan--Congresses.
Agriculture--Economic aspects--Sudan--Congresses.
Debts, External--Sudan--Congresses.
Sudan--Economic conditions--Congresses.
Sudan--Economic policy--Congresses.
Harvard subject headings:
Agriculture and state--Sudan--Congresses.
Agriculture--Economic aspects--Sudan--Congresses.
Debts, External--Sudan--Congresses.
Sudan--Economic conditions--Congresses.
Sudan--Economic policy--Congresses.
Princeton subject headings:
Agriculture and state--Sudan--Congresses.
Agriculture--Economic aspects--Sudan--Congresses.
Debts, External--Sudan--Congresses.
Sudan--Economic conditions--Congresses.
Sudan--Economic policy--Congresses.