1. Adeloye, D., Carr, N., & Insch, A. (2020). Conducting qualitative interviews on sensitive topics in sensitive places: The case of terrorism and tourism in Nigeria. Tourism Recreation Research, 45(1), 69–79. https://doi.org/10.1080/02508281.2019.1656872
2. de Almeida, A. S. A., & Pinto, R. (2017). Religiosidade e turismo: O primado da experiência. Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas, 12, 615–627. https://doi.org/10.1590/1981.81222017000200019
3. Alves, L. (2011). Centro Histórico de Guimarães. Comissão Nacional da UNESCO. https://unescoportugal.mne.gov.pt/pt/temas/proteger-o-nosso-patrimonio-e-promover-a-criatividade/patrimonio-mundial-em-portugal/centro-historico-de-guimaraes
4. Austin, S., Duncan, K., Goggin, G., MacDowall, L., Pardo, V., Paterson, E., Brown, J. J., Collett, M., Cook, F., Hadley, B., Hood, K., Kapuscinski-Evans, J., McDonald, D., McNamara, J., Mellis, G., Sifis, E., & Sulan, K. (2018). The last avant garde? Routledge Handbooks Online. https://doi.org/10.4324/9781351254687-20
5. Barron, L., & Gauntlett, E. (2002). Housing and sustainable communities indicators project, stage 1 report: Model of social sustainability. Western Australian Council of Social Services.