Leisure 12 Recreation 8 Social aspects 3 Student activities 3 Amusement parks 2 Leisure industry 2 Quality of life 2 Recreation centers 2 Students 2 Youth 2 Activities 1 Adolescence 1 Attitudes 1 Books and reading 1 Case studies 1 College students 1 Econometric models 1 Electronic information resources 1 Exercise 1 Government policy 1 Happiness 1 Income distribution 1 Job satisfaction 1 Leisure Activities 1 Mamelukes 1 Management 1 Motor Activity 1 Older people 1 Parsees 1 Psychological aspects 1