Fajriati, I., 		Rizkiyah, M., & 		Muzakky, M.
2012 Jan  1.  A Study of Solid-Liquid Extraction with HF And HNO3 as Solvent for Determination of Cr and Cu in the River Sediment near the Muria Nuclear Power Plant. Jurnal ILMU DASAR. [Online] 12:1