1. The Growing Challenge of Managing Outdoor Recreation;Collins;J. For.,2007
2. An analysis of Perceived Constraints to Outdoor Recreation;Ghimire;J. Park Recreat. Adm.,2014
3. Outdoor Participation Reporthttp://www.outdoorfoundation.org/research.participation.2014
4. 2021 Outdoor Participation Trends Reporthttps://outdoorindustry.org/resource/2021-outdoor-participation-trends-report/
5. On-Site Wildland Activity Choices among African Americans and White Americans in the Rural South: Implications for Management;Johnson;J. Park Recreat. Adm.,1999