Hamilton Alexander Rosskeen Gibb, «Abū ʿUbayda Maʿmar b. al-Muthannā», in: The Encyclopaedia of Islam. Edited by: P. Bearman, Th. Bianquis, C.E. Bosworth, E. van Donzel and W.P. Heinrichs. Brill, 2007. Brill Online. 11 aprile 2007 Home - Brill Reference
