Peter, J. Paul, author
Buku Teks
Peter, J. Paul, author
McGraw-Hill, 1999
Buku Teks
Engel, James F., author
Binarupa Aksara, 1994
Buku Teks
Howard, John A., author
Prentice-Hall, 1989
Buku Teks
Mowen, John C.
Macmillan Publishing Company, 1999
Buku Teks