Wyld, H.C.
Oxford Blackwell 1953
Buku Teks
editor, John DeFrancis
Allen & Unwin, 1997
Buku Referensi
Liddell, Henry George, author
Oxford Clarendon Press 1951
Buku Referensi
Breul, Karl, author
Boston D.C. Heath 1936
Buku Referensi
Krause, Wayne B
Jakarta: Elex Media Komputerindo, 2002
Buku Teks