RYAN FEBRIANSYAH FAJAR; VEBBY ANWAR; PAHMI; ANDI IRWAN. The Role Of Civil Servant Training In Improving Service Performance: The Mediating Effect Of Self-Efficacy At The Regional Secretariat Of Tambrauw Regency. International Journal of Management and Business Economics, [S. l.], v. 4, n. 3, p. 447–463, 2026. DOI: 10.58540/ijmebe.v4i3.1696. Disponível em: https://www.putrapublisher.org/index.php/jamis/article/view/1696. Acesso em: 21 jun. 2026.