Eusébio, Celeste, André Silveiro, and Leonor Teixeira. “Website Accessibility of Travel Agents: An Evaluation Using Web Diagnostic Tools”. Journal of Accessibility and Design for All 10, no. 2 (November 30, 2020): 180–208. Accessed September 22, 2024. http://147.83.158.228/index.php/jacces/article/view/277.