Ju, Gang Huen, author
Hanguare, 2008
Buku Referensi
Ju, Gang Hyeon, author
Hangyere Aideul, 2007
Buku Referensi
Indonesia. Departemen Pendidikan dan Kebudayaan
Ministry of Education and Culture, Republic of Indonesia, 2012
Buku Teks
Nasional Geographic, 2009
Buku Teks
Discovery Media, 2008
Buku Referensi