?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Tifany+Dita&rft.au=Saskia%2C+Tifany+Dita&rft.aulast=Saskia&rft.atitle=Mathematical+Gesture+of+the+blind+students+in+the+calculate+operation+of+the+Buner+learning+theory&rft.title=The+2nd+International+Conference+of+Education+on+Science%2C+Technology%2C+Engineering+and+Mathematics+(ICE-STEM)+2020.&rft.genre=article