The Encyclopaedia of Islam : new edition, volume 1
E.J. Brill, 1978
Buku Referensi
The Encyclopaedia of Islam : new edition, volume 1
E.J. Brill, 1986
Buku Referensi
THe New Lexicon Webster's Dictionary of the English Language Volume 1(Encyclopedic Edition)
Danbury : Lexicon Publications, Inc., 2004,
Buku Referensi
The Encyclopaedia of Islam : new edition, volume 2
E.J. Brill, 1978
Buku Referensi
The Encyclopaedia of Islam : new edition, volume 4
E.J. Brill, 1978
Buku Referensi