戰前香港電訊史 = A history of telecommunications in pre-war Hong Kong
香港西藥業史 A history of Hong Kong pharmacy and pharmaceutical market / [電子資源] =
香港報業雜談 Random talk on Hong Kong newspaper industry / [電子資源] =
香港身份證透視 A look into Hong Kong identity card (2nd edition) / [電子資源] =
九龍城寨簡史 = A concise history of Kowloon walled city
香港西藥業史 = A history of Hong Kong pharmacy and pharmaceutical market