Eric Lo. "CTB Route 1". 681 Bus Terminal (in Chinese). Retrieved 2 July 2017.
appledaily.com
hk.news.appledaily.com
"1號5號A今合併乘客或混淆 城巴一條路線兩號碼" [Two numbers for the same Citybus route: Passengers left in confusion as Bus 1 and 5A are merged today]. Apple Daily. 31 May 2004.
on.cc
the-sun.on.cc
"一線兩號易混淆 兩區議會不相讓 乘客決定巴士線編號" [Two numbers for the same routes leads to confusion, but district councils had different views; bus route number to be decided by passengers]. The Sun. 3 November 2004.
