| Description | From 'The Martrilineal Peoples of Eastern Tanzania' (by) T. O. Beidelman : Place, Publisher and Date of Publication: London, International African Institute, 1967, p. 18-19, 24-25, 48-50, 56-57, 62-65, 70-73 : Series: 'Ethnographic Survey of Arctic. East Central Africa'. No. 16 |