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The Libumba or Liboumba is a river of Gabon. It is one of the tributaries of the Ivindo River.

References

• Lerique Jacques. 1983. Hydrographie-Hydrologie. in Geographie et Cartographie du Gabon, Atlas Illustré led by The Ministère de l'Education Nationale de la Republique Gabonaise. Pg 14–15. Paris, France: Edicef.