Jary, David
Harper Collins, 1991
Buku Teks
G. Kartasapoetra
Bumi Aksara, 1992
Buku Referensi
Theodorson, George A.
Barnes & Noble Books, 1969
Buku Referensi
edited by Henry Praty Fairchild
Littlefield, Adams & Co., 1962
Buku Referensi
Garner, Bryan A.
Oxford University Press, 1995
Buku Referensi