Elinor Saiegh-Haddad, R. Malatesha Joshi, editors
Springer, 2014
Buku Teks
Gerlach, Mary Jo Mirlenbrink
Delmar, Cengage Learning, 2014
Buku Teks
editors, Olen Gunnlaugson, Charles Baron, Mario Cayer
Igi Global, 2014
Buku Teks
edited by Peter M. Kappeler and David P. Watts
Springer, 2012
eBooks
Mara, Cynthia Massie, editor; Olson, Laura Katz, editor
CRC Press, 2008
Buku Referensi