Chú thích Tứ_đại_khấu

  1. 1 2 Bard, Solomon. Voices from the past: Hong Kong, 1842-1918. [2002] (2002). HK university press. ISBN 962-209-574-7, ISBN 978-962-209-574-8. pg 183.
  2. ↑ L Fu. (2009). From surgeon-apothecary to statesman: Sun Yat-sen at the Hong Kong College of Medicine. J R Coll Physicians Edinb 2009; 39:166–72
  3. ↑ Macdonald, Phil. [2006] (2006). National Geographic Traveler: Hong Kong, 2nd Ed. National geographic books publishing. ISBN 0-7922-5369-8, ISBN 978-0-7922-5369-3.