3 reference for passenger transport??

1. International Air Transport Association (IATA) - The IATA is a trade association for the world's airlines, representing around 290 airlines and 82% of global air traffic. They provide industry standards, training, and advocacy for the passenger transport sector.

2. American Public Transportation Association (APTA) - APTA is a nonprofit organization that represents public transportation agencies in the United States. They provide resources, research, and advocacy for the public transportation industry, including buses, trains, and ferries.

3. European Passengers' Federation (EPF) - The EPF is an independent organization that represents the interests of passengers in Europe. They work to improve the quality and accessibility of passenger transport services, and advocate for passenger rights and protections.

1. Passenger Transport (journal): A peer-reviewed academic journal that publishes original research on all aspects of passenger transport, including planning, operations, economics, and environmental impacts.
[https://www.tandfonline.com/toc/rptr20/current](https://www.tandfonline.com/toc/rptr20/current)

2. International Association of Public Transport (UITP): A global network of public transport authorities, operators, and suppliers that provides resources and expertise on passenger transport.
[https://www.uitp.org/](https://www.uitp.org/)

3. World Bank's Transport and ICT Global Practice: A multilateral development institution that provides financial and technical assistance for passenger transport projects in developing countries.
[https://www.worldbank.org/en/topic/transport](https://www.worldbank.org/en/topic/transport)