?url_ver=Z39.88-2004&rft_id=10.31004%2Fcendekia.v5i2.697&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Puri&rft.au=Pramudiani%2C+Puri&rft.aulast=Pramudiani&rft.atitle=Students'+Mathematical+Thinking+in+Column+Calculation+and+Algorithms&rft.issue=2&rft.volume=5&rft.issn=2579-9258&rft.title=Jurnal+Cendekia+%3A+Jurnal+Pendidikan+Matematika&rft.date=July+2021&rft.pages=1928-1942&rft.genre=article