Columbia subject headings:
Computer networks.
Service industries--Developing countries.
Telecommunication systems.
Harvard subject headings:
Computer service industry.
Electronic data processing.
Electronic industries.
Information services.
Information technology
Service industries.
Telecommunication--International cooperation
Telecommunication.
Trade regulation.
Princeton subject headings:
International trade.
Service industries--Communication systems.
Service industries--Data processing.
Telecommunication--International cooperation.