@article{koech_njoya_2025,  title={How Sociodemographic Attributes Influence Air Travel Frequency and Frequent Flyer Program Perceptions: Evidence from a Cross-Sectional Study},  volume={17},  ISSN={2175-9146},  url={https://doi.org/10.1590/jatm.v17.1398},  DOI={10.1590/jatm.v17.1398},  journal={Journal of Aerospace Technology and Management},  publisher={Departamento de Ciência e Tecnologia Aeroespacial},  author={Koech, Alex Kipkorir and Njoya, Eric Tchouamou},  year={2025},  pages={e3625} }