HAMDANI, M. . The Effect Of Internal Communication On Work Productivity Of Employees Tata Graha In Star Hotel In Ajibata Sub-District, Toba Samosir District. Jurnal Ilmiah Akomodasi Agung, [S. l.], v. 6, n. 1, p. 78–84, 2019. DOI: 10.51827/jiaa.v6i1.25. Disponível em: https://journal.akpardarmaagung.ac.id/index.php/JIAA/article/view/25. Acesso em: 10 feb. 2026.