Haji,Mariam H. Effectiveness of Using Electronic Fiscal Devices Machines in Tax Revenue Collection in Tanzania : A Case Study of Zanzibar / by Mariam Hassan Haji - Dar es salaam: The Open University of Tanzania, 2018 - xiv,47p.: ill.; 30 cm. Includes Bibliographical References and Index Subjects--Topical Terms: Dewey Class. No.: EA DIS 352.4409678 HAJ