ENCOURAGING SUSTAINABLE TOURISM PRACTICES: https://etc-corporate.org/uploads/2021/09/ETC_SUSTAINABLE_TOURISM_HANDBOOK_vs6_FINAL.pdf
Building strong and resilient tourism destinations: https://www.oecd.org/content/dam/oecd/en/publications/reports/2025/04/building-strong-and-resilient-tourism-destinations_2aeee83b/a57c343d-en.pdf