?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Sarwanto%2C+Sarwanto&rft.aufirst=Sarwanto&rft.aulast=Sarwanto&rft.date=2003&rft.atitle=Penentuan+Besar+Sampel&rft.genre=article