Lee, Yun Jung, author
Salleem, 2009
Buku Teks
Kim, Jin Meong, author
Saeum Book, 2009
Buku Teks
Devid Kumar Basyal, author
Graduate School of Public Administration Seoul National Universiarty, 2016
Artikel Jurnal
Cortelazze, Manlio
Tubingen Gunter Narr Verlag 1979
Buku Teks
Saramago, Jose, author
Caminho, 1997
Buku Teks