Spiro, Socrates, bey, 1868-, compiler
Elias Modern Press, 1929
Buku Referensi
Garner, Bryan A., author
Oxford University Press, 1995
Buku Referensi
Fowler, H. W. (Henry Watson), 1858-1933, author
New York Oxford University Press 1965
Buku Referensi
Wehr, Hans, 1909-1981, author
Spoken Language Services, 1976
Buku Referensi
Lewis, Norman
New York Harper and Row 1963
Buku Referensi