Hasmi, H.; Hardiyansyah, H.; Fitriyah, F. The Influence Of Perceptions Of Organizational Support, Training, Self-Concept And Communication On The Work Effectiveness Of Employees Of The Regional Secretariat Of Muara Enim Regency. j.ekonomi, j.manajemen, j.bisnis, j.akuntansi 2023, 3, 51–56.