Stoiyanova, M. (2020). Education in sustainable development and interaction “child – environment”, Sofia: Avangard print, ISBN 978-954-337-408-3
Julia Doncheva
"Angel Kanchev", University of Ruse (Bulgaria)
Stoiyanova, M. (2020). Education in sustainable development and interaction “child – environment”, Sofia: Avangard print, ISBN 978-954-337-408-3
Julia Doncheva
"Angel Kanchev", University of Ruse (Bulgaria)
София 1113, бул. “Цариградско шосе” № 125, бл. 5