世界観光機関
No.4 Outbound tourism of the Republic of Korea : market profile. 2000. NCID: BA67252058.
No.5 Outbound tourism of Australia : market profile. 2000. NCID: BA51546559.
No.6 Outbound tourism of Japan : market profile. NCID: BA67253899.
No.7 Outbound tourism of Belgium : market profile. 2001. NCID: BA54044149.
No.8 Outbound tourism of Spain : market profile. 2001. NCID: BA56206842.
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