?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=LIZZA&rft.au=LIZZA%2C+IRMA&rft.aufirst=IRMA&rft.title=PENGARUH+PENAMBAHAN+PENGAWET+PADA+SAMPEL+AIR+BERSIH+TERHADAP+PEMERIKSAAN+KADAR+NITRAT+(NO3)+DAN+NITRIT+(NO2)&rft.inst=Poltekkes+Kemenkes+Tanjungkarang&rft.degree=Diploma&rft.date=15+October+2024