https://en.wikipedia.org/wiki/Bank_of_China_Tower_(Hong_Kong)

http://www.heintges.com/project.php?id=bank-china-tower

http://elpachinko.com/viajes-hong-kong/bank-of-china-tower/

http://www.jmhdezhdez.com/2012/05/bank-of-china-tower-hong-kong-drawings.html