editor, David B. Pisoni, Robert E. Remez
Blackwell Publishing, 2005
Buku Referensi
edited by Edwin H. Gaylord, Jr., Charles N. Gaylord, James E. Stallmeyer.
McGraw-Hill, 1997
Buku Teks
Raznjevic, Kuzman
Hemisphere Pub. Corp., 1976
Buku Referensi
Beyer, Hans, author
Prentice-Hall, 1996
Buku Referensi
edited by David Linden
McGraw-Hill, 1984
Buku Referensi