Allan, J. de V. Swahili origins : Swahili culture & the Shughwaya phenomenon / James de Vere Allen. - London : James Currey, 1993. - xii, 272p : ill. ; 22 cm. - Eastern African studies . Includes bibliographical references and index. Open access. ISBN: 082141044X LCCN: 9214316 Subjects--Topical Terms: Swahili-speaking people--History.Swahili-speaking peoples--Ethnic identity.