Park, Gyeong-Ri, author
Houyhnhnm, 2007
Buku Teks
Danni Junus, author
Gagas Media, 2004
Buku Teks
Lim, Yong Joo, author
Korea Seoul Daewonsa, 2006
Buku Teks
Kim, Hei-kyung, author
Gyonggi-do: Yeol Hwa Dan, 2005
Buku Teks
McDermott, Lynda Caryl, author
American Society for Training and Development, 2008
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