?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Rijki+Dharukutni&rft.au=Rijki+Dharukutni%2C+-&rft.aufirst=-&rft.inst=Universitas+Pendidikan+Indonesia&rft.degree=S1&rft.title=STUDI+PERBAIKAN+TANAH+RESIDUAL+TROPIS+MENGGUNAKAN+ADDITIVE+XANTHAN+GUM&rft.date=27+August+2025