Warning: file_get_contents(https://ojs.journalbusiness.my/ojs.php): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /var/www/ojs.unud.ac.id_backup/lib/pkp/includes/functions.inc.php on line 4 Purba, E., & Laksana, I. 2020 Jul 31. Legalitas Aktivitas Militer di Ruang Angkasa Berdasarkan Ketentuan Piagam PBB dan Space Treaty 1967. Kertha Negara : Journal Ilmu Hukum. [Online] 8:6