並前往https://www.eduhk.hk/include_n/getrichfile.php?key=3cb770e731183c1dbbb7a7f0615bc10f&secid=50948&filename=ahks/event/2017062829_HK20YearsaftertheHandoverConference/Prof_Eric_Fong_Chinese_version-Migration_from_China_and_the_Formation_of_Group.pdf