PUTRO, Bramantiyo Eko. Analisa Control Self Assessment Audit Pada Klausul A.5 Security Policy Hingga Klausul A.9 Physical And Environmental Security Telkom Flexi Kebon Sirih Jakarta Pusat Menggunakan ISO/IEC 27001. Media Jurnal Informatika, [S. l.], v. 8, n. 1, 2018. DOI: 10.35194/mji.v8i1.143. Disponível em: https://jurnal.unsur.ac.id/index.php/mjinformatika/article/view/143. Acesso em: 16 apr. 2026.