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"Hong Kong Act 1985". www.legislation.gov.uk. Archived from the original on 7 August 2019. Retrieved 20 June 2020.
"BN(O)持有人留英「5+1」年即可取得英國公民身份" [BN(O) holders can obtain British citizenship after staying in the UK for "5+1" years]. Mad Dog Daily癲狗日報 (in Traditional Chinese). 1 July 2020. Archived from the original on 1 July 2020. Retrieved 1 July 2020.