• Volgograd State Pedagogical University
    Sukhomlynsky, Konstantin Ushinsky, Lev Vygotsky, Daniil Elconin (ru:Эльконин, Даниил Борисович, de:Daniil Borissowitsch Elkonin), and David Feldstein. Scientific...
    7 KB (595 words) - 19:14, 31 August 2023