editor, Frank N. Magill
Salem Press, 1993
Buku Referensi
Compton, William C., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Vasta, Ross, author
John Wiley & Sons, 1999
Buku Teks
King, Laura A. (Laura Ann), author
McGraw-Hill, 2011
Buku Teks
King, Laura A. (Laura Ann), author
McGraw-Hill, 2014
Buku Teks