Topaicí molta
- Telecommunication 5 toradh
- Data transmission systems 2 toradh
- Documentation 2 toradh
- Electrical engineering 2 toradh
- Equipment and supplies 2 toradh
- Notation 2 toradh
- Standards 2 toradh
- Switching systems 2 toradh
- Cyberspace 1 toradh
- Information technology 1 toradh
- Internet 1 toradh
- Periodicals 1 toradh
- Social aspects 1 toradh
- Telecommunication cables 1 toradh
- Telecommunication systems 1 toradh