Life
Historical New York Times
Time
時事畫報
Old Hong Kong Newspapers
Hong Kong Government Reports Online (1842-1941)
Kitazawa, Rakuten. Tōkyō Pakku : Fukkokuban. 覆刻.. ed. Tōkyō; 東京 :: Ryūkei Shosha; 龍溪書舎, 1985.
Hong Kong Journals Online