Internet (Computer network).

Implementing Internet security / by: (Language materials, printed)

The European internet companion : = a beginner's guide to global networking / by: (Language materials, printed)

Electronic information distribution in tourism and hospitality / by: (Language materials, printed)

The Internet for beginners / by: (Language materials, printed)

Computer networks- Security measures.

Internet (Computer network).

Computer network resources.

Tourism- Information services.

Hospitality industry- Data processing.