?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=WIDI&rft.aulast=HARTOMO&rft.au=HARTOMO%2C+WIDI&rft.date=31+January+2022&rft.degree=Other&rft.inst=Institut+Teknologi+Nasional+Yogyakarta&rft.title=Analisis+kerusakan+track+roller+excavator+PC+200+di+PT.+Perwita+Karya