“SIGHTSEEING” (英語). Lexico Dictionaries. Oxford dictionary. 2022年5月3日閲覧。 “The activity of visiting places of interest in a particular location.”
“TOURISM” (英語). Lexico Dictionaries. Oxford dictionary. 2022年5月2日閲覧。 “The commercial organization and operation of holidays and visits to places of interest.”
“OECD Glossary of Statistical Terms - Tourism Definition” (英語). stats.oecd.org. 経済協力開発機構 (2001年9月25日). 2022年5月5日閲覧。 “Tourism is defined as the activities of persons travelling to and staying in places outside their usual environment for not more than one consecutive year for leisure, business and other purposes not related to the exercise of an activity remunerated from within the place visited.”
