Linked from
The 13 pages that link to Nile basin, each with the reason it gives.
NileNarrower topic: Its large, transboundary catchment determines the river’s water supply.
East AfricaRelated: Water sharing links East African highlands and lakes to downstream countries.
African Great LakesRelated: Lake Victoria is a major source of water for the White Nile.
Lake EdwardNarrower topic: Lake Edward drains northward through the Semliki River toward the Nile.