Konsep konflik bersenjata non-internasional dalam hukum humaniter (Studi kasus konflik bersenjata di Ituri, Kongo, pada 1 September 2002-13 Agustus 2003) = The concept of non-international armed conflict in international humanitarian law (Case study armed conflict in Ituri, Congo, on 1 September 2002-13 August 2003)