世界観光機関
9 Outbound tourism of Japan and the Republic of Korea : results 2000. 2001. NCID: BA6725436X.
No.21 Outbound tourism of Scandinavia : market profile. 2002. NCID: BA58228926.
Youth outbound travel of the Germans, the British & the French . 2002. NCID: BA61472823.
European Travel Commission MICE outbound tourism 2000. 2003. NCID: BA63807398.
No.24 Outbound tourism from Saudi Arabia. 2003. NCID: BA63810304.