1.
Official site of group "Child and computer"

Official site of group "Child and computer"

http://kidandcomp.narod.ru/ - Lviv
Official site of group "Child and computer".
2.
Book "Thoughts country"

Book "Thoughts country"

http://mysl.lviv.ua/ - Lviv
Book "Thoughts country": sums and tasks for children.
3.

Сайт abc-color.com

http://abc-color.com/ - Lviv
4.
5.