Hampton, John R., author
Churchill Livingstone/Elsevier, 2013
Buku Teks
Brenna H. Mayer, editor
Springhouse, 2002
Buku Teks
Ponder, Randall D., author
EP Entrepreneur Press, 2005
Buku Teks
O, Song-un, author
Darakwan, 2009
Buku Teks
Seung-eun Oh, author
Darakwan, 2009
Buku Teks