edited by Frances Farmer
Oceana, 1956
Buku Teks
Hoover, Herbert, 1874-1964
McGraw-Hill, 1958
Buku Teks
Wilson, Eva, 1925-
London British Museum Press 1999,
Buku Referensi
Link, Arthur S.
University of Pennsylvania Press , 1957
Buku Teks
Wilson, Lindsay
McGraw-Hill , 1975
Buku Teks