Columbia subject headings:
Democracy--Sudan--Congresses.
Sudan--Politics and government--Congresses.
Ḥizb al-Ittiḥādī al-Dīmuqrāṭī (Sudan)--Congresses.
Harvard subject headings:
Princeton subject headings:
Democracy--Sudan--Congresses.
Ḥizb al-Ittiḥād al-Dīmuqrāṭī (Sudan)--Congresses.