?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Mampouw&rft.au=Helti%2C+Mampouw&rft.aulast=Helti&rft.atitle=INTERNALIZATION+OF+MULTIPLICATION+AND+DIVISION+CONCEPTS+IN+A+NEO-PIAGETIAN+PERSPECTIVE&rft.title=Proceeding+of+International+Conference+On+Research%2C+Implementation+And+Education+Of+Mathematics+And+Sciences+2014&rft.date=May+2014&rft.genre=article