信息不完整 “Africa” ( ch. 7) . Gerrit J. Dimmendaal and F. K. Erhard Voeltz (2007) , Christopher Moseley · Routledge
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近危
20 percent certain, based on the evidence available
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5,000-6,000
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"Spoken by 5,000 or fewer people in Cameroon, and a few hundred people in Chad"