85.59.B - Other out-of-school forms of education, not elsewhere classified
47.91.Z - Retail sale via mail order houses or via Internet
58.11.Z - Book publishing
58.14.Z - Publishing of journals and periodicals
63.12.Z - Web portals
72.20.Z - Research and experimental development on social sciences and humanities
73.20.Z - Market research and public opinion polling
82.30.Z - Organisation of conventions and trade shows
85.52.Z - Out-of-school forms of cultural education
85.60.Z - Educational support activities
Opinie dotyczące usług, produktów oraz działalności firmy nie są weryfikowane