SUBJECT
Tourist trade
Economic aspects
30
Travel
27
Marketing
22
Research
21
Management
18
Planning
17
Statistics
15
Tourism
12
Vocational guidance
12
Travel agents
11
Social aspects
10
Geography
9
Hotels, taverns, etc
9
Recreation
8
Religious aspects
8
Leisure
7
Tourist trade and state
7
Travelers
7
Leisure industry
6
Description and travel
5
Environmental aspects
5
Law and legislation
5
Recreation areas
5
Christianity
4
Farms
4
Finance
4
Hotel management
4
Information services
4
Recreational use
4
Cities and towns
3
Economic conditions
3
Ecotourism
3
Forecasting
3
Government policy
3
Psychological aspects
3
Psychology
3
Statistical methods
3
Accounting
2
Agriculture
2
Conservation and restoration
2
Economic policy
2
Environmental protection
2
Historic sites
2
Hospitality industry
2
International business enterprises
2
Package tours
2
Power resources
2
Prostitution
2
Regional planning
2
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