Lubue River
The Lubue River runs from south to north through Idiofa territory, Kwilu province, Democratic Republic of the Congo.
Near its origin in the south, where the Musanga River enters from the left, it is a small, winding river perhaps  wide obstructed by rocks and rapids. It becomes navigable at Mulasa, and below this point meanders through a very wide and wooded valley. It enters the Kasai near the town of Dibaya Lubue.

References

Rivers of the Democratic Republic of the Congo
Kwilu Province
Kasai River