?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=0543042018%2C+IKA+MARTHALIA&rft.aulast=0543042018&rft.aufirst=IKA+MARTHALIA&rft.date=2011&rft.atitle=IMPROVING+STUDENTS%E2%80%99+MOTIVATION+IN+LEARNING+VOCABULARY+THROUGH+WORD+CLUSTER+AT+THE+SECOND+YEAR+OF+SMP+NEGERI+19+BANDAR+LAMPUNG+&rft.title=Digital+Library&rft.genre=article