?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Ariyansah&rft.au=Riyan%2C+Ariyansah&rft.aulast=Riyan&rft.btitle=TEKNOLOGI+PELUMASAN&rft.title=TEKNOLOGI+PELUMASAN&rft.genre=bookitem