Sông_Niger
Sông_Niger
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Sông_NigerLiên quan
Sông NigerTài liệu tham khảo
WikiPedia: Sông_Niger http://www.nigercurrents.ca http://www.etymonline.com/index.php?term=Niger http://www.fao.org/docrep/w4347e/w4347e0i.htm http://www.waterandnature.org/eatlas/html/af14.htm... http://earthtrends.wri.org/maps_spatial/maps_detai... https://commons.wikimedia.org/wiki/Category:Niger_...