O`Hair, Dan, author
Allyn and Bacon, 2011
Buku Teks
Andrews, Patricia Hayes, author
Waveland, 1986
Buku Teks
O`Hair, Dan, author
Allyn and Bacon, 2011
Buku Teks
Adams, Katherine L., author
McGraw-Hill, 2012
Buku Teks
Adams, Katherine L., author
McGraw-Hill, 2003
Buku Teks