Graddy, Duane B., author
Prentice-Hall, 1990
Buku Teks
Graddy, Duane B., author
Prentice-Hall, 1990
Buku Teks
Adams, Kristen David, author
St. Paul, MN : West Group, 2010
Buku Teks
East-West Center, 2004
Buku Teks
Abdul Irsan, author
Hasanuddin Universiatas Press, 2005
Buku Teks