Columbia subject headings:
Harvard subject headings:
Congo (Democratic Republic)--Religion.
Swahili language--Congo (Democratic Republic)
Swahili language--Foreign elements--Arabic
Swahili language--Religious aspects
Princeton subject headings:
Congo (Democratic Republic)--Religion.
Swahili language--Congo (Democratic Republic).
Swahili language--Foreign elements--Arabic.
Swahili language--Religious aspects.