Kreller, Susan, author
Putnam's Sons, an imprint of Penguin Group , 2015
Buku Teks
Cleary, Jon, author
Collins Publishers Australia, 1947
Buku Teks
Walton, Donald, author
McGraw-Hill , 1989
Buku Teks
Korea Tourism Organization, 2004
Multimedia
Snicket, Lemony, author
Egmont, 2013
Buku Teks