https://www.hawaiitourismauthority.org/research/annual-visitor-research-reports/
Annual Visitor Research Reports - Hawaii Tourism Authority
hawaii tourism authorityvisitor researchannualreports
https://www.tohoku.ac.jp/en/research/international_visitor_research_center.html
International Visitor Research Center | Tohoku University
An institution which is open to researchers around the world, where people from diverse disciplines can gather, learn and create.
visitor research centertohoku universityinternational