Joanna Steinke-Kalembka Edukowisko.pl

86.90.E - Other human health activities notelsewhere classified

32.40.Z - Manufacture of games and toys

47.91.Z - Retail sale via mail order houses or via Internet

58.11.Z - Book publishing

63.12.Z - Web portals

72.20.Z - Research and experimental development on social sciences and humanities

85.59.B - Other out-of-school forms of education, not elsewhere classified