[Cameroon department] Bui is a department of Northwest Province in Cameroon. The department covers an area of 2,297 km² and as of 2001 had a total population of 322,877.The capital of the department lies at Kumbo. ==Subdivisions== The department is divided administratively into 7 communes and in turn into villages. === Communes === ... Found on http://en.wikipedia.org/wiki/Bui_(Cameroon_department)