?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=NIDN%3A0518108302&rft.au=OKKIVERDIANSYAH%2CST.%2CMT.%2C+NIDN%3A0518108302&rft.aulast=OKKIVERDIANSYAH%2CST.%2CMT.&rft.tpages=34&rft.date=February+2018&rft.degree=Other&rft.inst=institut+teknologi+nasional+yogyakarta&rft.title=KARAKTERISTIKMINERALISASILOGAMTIPEEPITERMAL+DANTINJAUANPROSPEKSINYAPADADAERAHGODEAN%2C+YOGYAKARTA