Hidayat, M. Choirul. 2017. “LEGALITAS FOREIGN FIGHTER DALAM KEANGGOTAN ISLAMIC STATE OF IRAQ AND SYRIA / ISLAMIC STATE OF IRAQ AND LEVANT (ISIS/ISIL) BERDASARKAN HUKUM HUMANITER INTERNASIONAL”. Brawijaya Law Student Journal, June. http://hukum.studentjournal.ub.ac.id/index.php/hukum/article/view/2379.