Newmark, Maxim, author
New York : Philosophical Library, 1950
Buku Referensi
Jones, Randall L., author
New York : Routledge , 2006
Buku Referensi
Djalinus Sjah, author
Jakarta Rineka Cipta 1993
Buku Referensi
Torino, 1995
Buku Referensi
editor, John DeFrancis
Allen & Unwin, 1997
Buku Referensi