Samatar, Said S.: Oral Poetry and Somali Nationalism: The Case of Sayid Mahammad 'Abdille Hasan, s. 56. Cambridge: Cambridge University Press, 1982. ISBN 9780511735370Teoksen verkkoversio (viitattu 13.1.2020).
A Modern History of the Somali : Nation and State in the Horn of Africa, s. 251. Boydell & Brewer, 2002. ISBN 9781782049876Teoksen verkkoversio (viitattu 13.1.2020).
Brown, Jonathan A.C.: The Social Context of Pre-Islamic Poetry: Poetic Imagery and Social Reality in the Mu c Allaqat. Arab Studies Quarterly, 2003, 25. vsk, nro 3, s. 29–50. Pluto Journals. Artikkelin verkkoversio. Viitattu 13.1.2020. (englanniksi)