並前往https://www.academia.edu/35511663/%E8%88%AA%E7%A9%BA%E5%AE%A2%E9%81%8B%E9%9B%BB%E8%A8%8A%E4%BB%A3%E7%A2%BC%E5%8F%8A%E7%B8%AE%E8%AA%9E_Glossary_of_Air_Passenger_Codes_and_Abbreviations
