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PROFIL'NOE OBUChENIE FIZIKE KAK PEDAGOGIChESKAYa PROBLEMA - PDF (Russian)
Copyright (c) 2006 Saksonova L.P., Chumak N.F.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2006 Saksonova L.P., Chumak N.F.
This work is licensed under a Creative Commons Attribution 4.0 International License.