SIALLAGAN, Posmaria; ISFARUDI, Isfarudi; KOSWARA, Hendri. Quality of Service at the Office Environment of National Political Unity and Community Protection of Mentawai Islands Regency. Science and Environmental Journal for Postgraduate, [S. l.], v. 5, n. 2, p. 208–216, 2023. DOI: 10.24036/senjop.v5i2.204. Disponível em: http://senjop.ppj.unp.ac.id/index.php/senjop/article/view/204. Acesso em: 24 jul. 2026.