almamary, moahamed hassan salem, alsharif, A. N., almamary, yaser and alsinoui, mohammed abdelrrab (2022) “The role of availability of management information systems components in improving institutional performance in Yemeni telecom companies”, Journal of Excellence for Economics and Management Research, 6(2), pp. 13-46. doi: 10.34118/jeemr.v6i2.3588.