Korea seen from abroad
Seoul: The Korea Herald, 1976
 Buku Teks
Ray, Sibnarayan
Vietnam : seen from east and west
Melbourne and Sydney : Thomas Nelson (Austrakia) Ltd., 1966.
 Buku Teks
North Korea seen from abroad
Korea Information Service, 1976
 Buku Teks SO
Korean seen from abroad Korea Information Service
Seoul Korea Herald 1976,
 Buku Teks
Azerbaijan : information digest 2007
Ministry of Foreign Affairs of the Republic of Azerbaijan, 2007
 Buku Referensi