edited by Scott D. Mair
Mosby Elsevier, 2006
Buku Teks
Duden, Ellington
Contemporary Books, 1981
Buku Teks
Safran, Marc R.
Saunders Elsevier, 2012
Buku Teks
Safran, Marc R.
Elsevier/Saunders, 2011
Multimedia
edited by Douglas L. Moeller, James L. Moeller
Wolters Kluwer, 2007
Buku Teks