by Joseph T. Straub
Gemini Books, 2000
Buku Referensi
by Joseph T. Straub
Gemini Books, 2000
Buku Referensi
edited by Malcolm Warner
Business Press, 2000
Buku Referensi
Arvind Kumar, editor-in-chief
Anmol Publications, 1998
Buku Referensi
Encyclopaedia Britannica Inc., 1967
Buku Referensi