Bakar,W.J Tofauti za kimsamiati kati ya kipemba na kikojani katika mawasiliano ndani ya mkoa wa kaskazini Pemba; by Wazir Juma Bakar - Dar es Salaam: Open University of Tanzaniam, 2015 - xv,95p.; ill.: 30cm Includes bibliographical references Subjects--Topical Terms: Dewey Class. No.: EA.THE 415.0978 BAK