信息不完整 “A rapid appraisal survey of the Abo and Barombi speech communities, South West and Littoral Provinces, Cameroon” (28) . Lamberty, Melinda (2002) SIL International
易危
20 percent certain, based on the evidence available
12,000
信息不完整 “Ethnologue: Languages of the World, 16th Edition (2009)” . M. Paul Lewis · SIL International
易危
20 percent certain, based on the evidence available
12,000
信息日期
2001
信息不完整 “The World Atlas of Language Structures” . Bernard Comrie and David Gil and Martin Haspelmath and Matthew S. Dryer · Oxford University Press