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Elementary school mathematics 1

Bibliográfalaš dieđut
Váldodahkki: Science Education Center, University of the Philippines
Materiálatiipa: Girji
Giella:eaŋgalasgiella
Almmustuhtton: Quezon City Science Education Center, University of the Philippines 1968.
Fáttát:
Mathematics > Problems, questions, exercises.
Mathematics > Study and teaching (Elementary)