?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Budian&rft.au=Budian%2C+Fahmi+Eka&rft.aufirst=Fahmi+Eka&rft.date=2020&rft.degree=S1&rft.title=PENGARUH+VARIASI+TEMPERATUR%2C+WAKTU+TAHAN+DAN+JUMLAH+UREA+TERHADAP+SIFAT+KEKERASAN+DAN+KETEBALAN+LAPISAN+DIFUSI+PACK+NITRIDING+PADA+LOW+ALLOY+STEEL+AISI+4340&rft.inst=Fakultas+Teknik+Universitas+Sultan+Ageng+Tirtayasa