Jerad, Wilbard Ritual patterns of Chagga people : major changes since the colonial period - Dar es Salaam : University of Dar es Salaam, 1998 - vii,33p. ; 30cm. - Research paper (BA Sociology) . Subjects--Topical Terms: ChaggaRitual patterns,History, Worship LC Class. No.: SOC RES BL600.J47