The Encyclopaedia of Islam : new edition volume X, T - U

 Bearman, PJ; Bianquis, TH; Bosworth, C.E.; Donzel, E.Van; Heinrichs, W.P.;

Leiden : E. J. Brill , 2000

The Encyclopaedia of Islam : New Edition Volume IX SAN - SZE / C.E. Bosworth,

 Bosworth, C.E.; Donzel, E. Van; Heinrichs, W.P.; Leocomte, G.;

Leiden : E. J. Brill , 1997

The Encyclopaedia of Islam : new edition glossary and index of term to volume I-IX and to the supplement, fascicules 1-6

 Bearman, P.J.; Bianquis, TH.; Bosworth, C.E.; Donzel, E. Van.; Heinrichs, W.P.;

Leiden : E. J. Brill , 2000