Song, Nak-won, author
Communication Books (Ju), 2008
Buku Teks
Maurice Abadi
Paris Societe d'Editions Geographiques, Martimes et Coloniales 1924
Buku Teks
Baek, Mun-sik, author
Pakijung, 2010
Buku Teks
Ma, Chong-mi, author
Kaema Kowon , 2005
Buku Teks
Lee, Seung Hun, author
Phuren Ssasang, 2009
Buku Referensi