Eisenson, Jon
Appleton Century Ciafts, 1963
Buku Teks
Devito, Joseph A., author
Random House, 1970
Buku Teks
O`Shaughnessy, Douglas, 1950-, author
Addison-Wesley, 1987
Buku Teks
Gillam, ronald B., author
Jones and Bartlett Learning, 2011
Buku Teks
Field, John, author
Routledge, 2005
Buku Teks