SUBJECT
Tourist trade
Economic aspects
26
Travel
25
Marketing
21
Research
20
Management
18
Planning
17
Vocational guidance
12
Travel agents
11
Social aspects
10
Statistics
9
Geography
8
Hotels, taverns, etc
8
Religious aspects
7
Leisure
6
Recreation
6
Travelers
6
Law and legislation
5
Leisure industry
5
Tourism
5
Environmental aspects
4
Finance
4
Hotel management
4
Information services
4
Tourist trade and state
4
Christianity
3
Ecotourism
3
Farms
3
Forecasting
3
Government policy
3
Recreation areas
3
Recreational use
3
Statistical methods
3
Accounting
2
Cities and towns
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
Psychological aspects
2
Psychology
2
Regional planning
2
Resort development
2
Study and teaching
2
Tour guides (Persons)
2
more ...