"Hong Kong Tramways and Start-Up Circus Launch the Circus Tram – A Premium Party Tram (創新派對電車) Offering a Unique Ride to Experience Hong Kong Culture and Talents" (PDF).
Accesat în 12 martie 2015.  ^ a b „Hong Kong Tramways and Start-Up Circus Launch the Circus Tram – A Premium Party Tram (創新派對電車) Offering a Unique Ride to Experience Hong Kong Culture and Talents” (PDF).