Mordtmann & Ménage 2012. Mordtmann, Johannes Heinrich; Ménage, Victor Louis (2012). "Ḏh̲u ' l- Ḳadr". In Bearman, P.; Bianquis, Th.; Bosworth, C.E.; van Donzel, E.; Heinrichs, W.P. (eds.). Encyclopaedia of Islam, Second Edition. E. J. Brill.
worldcat.org
Öztuna 2005, p. 88. Öztuna, Yılmaz (2005). Devletler ve hanedanlar: Türkiye (1074-1990) (in Turkish). Ministry of Culture. ISBN9751704693. OCLC949531568.