Hong Kong International Airport - Wikipedia
Languages in Hong Kong, Official & Other Languages
What do you call the little symbols of the Chinese writing, is it a language or not? - Quora
Why is English the global language although it is not the most spoken native language? - Quora
How many languages can you speak? 90pc of Hong Kong under 30s speak Cantonese, Putonghua and English
A Beginner's Guide to Mandarin Chinese: Surprising Facts About the World's Most Spoken Language, by Chee Loh
Cantonese v Mandarin: When Hong Kong languages get political - BBC News
Snapshot of Hong Kong Population
The Hong Kong cantonese speech community - Persée
What Languages Are Spoken In Hong Kong? - WorldAtlas