Haji Mohd Yusoff, Z., and F. Mahmud. “Gerakan Teroris Dalam Masyarakat Islam: Analisis Terhadap Gerakan Jemaah Islamiyah (JI)”. Jurnal Usuluddin, vol. 21, June 2005, pp. 39-62, https://jrmg.um.edu.my/index.php/JUD/article/view/4225.