?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Vera+Ladeska&rft.au=Vera+Ladeska%2C+Vera&rft.aufirst=Vera&rft.degree=Masters&rft.date=February+2005&rft.inst=Universitas+Andalas&rft.title=TESIS+S2