Weber, Eugen, author
D.C. Heath, 1959
Buku Teks
Weber, Eugen, author
D. C. Heath, 1959
Buku Teks
Harthan, John, author
Thame and Hudson, 1981
Buku Referensi
Naidis, Mark, author
Dryden Press, 1972
Buku Teks
Newhauser, Richard
Ashgate/Variorum, 2007
Buku Teks