Kalumuna,Isaac Impact of E-Commerce Adoption on Business Performance in Tanzania : A Case of Study of Dar es salaam Stock Exchange / Isaac Kalumuna - Dar es salaam: The OPen University of Tanzania, 2016. - xvi,,205p.: ill.; 30cm. Includes Bibliographical References and Index Subjects--Topical Terms: E-Commerce - TZStock Exchange - Tz Dewey Class. No.: EA.DIS 381.14209678 KAL