Carlyle, Thomas
Chapman & Hall, [Date of publication not identified]
Koleksi Publik
Pirie, David B.
Roetledge, 1985
Buku Referensi
edited by Norman Page
Macmillan, 1984
Buku Teks SO
Macaulay, Lord
Longmans, 1874
Koleksi Publik
Robert M. Hutchins, Mortimer J. Adler, editors in chief
Encyclopaedia Britannica, Inc., 1963
Buku Referensi