Kimbundu, or North Mbundu, one of two Bantu languages called Mbundu (see Umbundu), is the second-most-widely spoken Bantu language in Angola. It is concentrated in the north-west of the country, notably in the Luanda Province, the Bengo Province, the Malanje Province and the Cuanza Norte Province. It is spoken by the Ambundu. Maho (2009) distinguishes two primary dialects: Kimbundu proper, incl. Ngola, and Mbamba, incl. Njinga. The other Kimbundu languages are sometimes considered dialects as well. In part of the Malanje Province, culturally “assimilated” Ambundu populations produced a mix of Kimbundu and Portuguese called Ambaca, whose speakers are called Ambaquistas.