ㅡ nova subsystems .by ₍ᐢ.ˬ.⑅ᐢ₎2283840intros ;pnovasystem ㅡ nova subgroups .by ₍ᐢ.ˬ.⑅ᐢ₎1233941intros ;pnovasystem ㅡ nova system .by ₍ᐢ.ˬ.⑅ᐢ₎812213200book one of intros ;pnovasystem