Freeman, Jack (2009). "The al Houthi Insurgency in the North of Yemen: An Analysis of the Shabab al Moumineen". Studies in Conflict & Terrorism. 32 (11): 1008–1019. doi:10.1080/10576100903262716. ISSN1057-610X.
jstor.org
"Sa‘da in the North Yemeni Context" Salmoni, Barak A., Bryce Loidolt, and Madeleine Wells. Regime and Periphery in Northern Yemen: The Huthi Phenomenon, pp. 19–44. JSTOR. Accessed 10 August 2021.
worldcat.org
search.worldcat.org
Freeman, Jack (2009). "The al Houthi Insurgency in the North of Yemen: An Analysis of the Shabab al Moumineen". Studies in Conflict & Terrorism. 32 (11): 1008–1019. doi:10.1080/10576100903262716. ISSN1057-610X.