Items where Author is "Essye , Dwiwahyu Ratnasari"
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Essye , Dwiwahyu Ratnasari (2011) The Determination of Rare Soil Metals in Thorium Concentrate Using Emission Spectrograph Method. S1 thesis, UNY.
Essye, Dwiwahyu Ratnasari (2010) PENENTUAN LOGAM TANAH JARANG DI DALAM KONSENTRAT TORIUM DENGAN METODE SEKTROGRAFI EMISI. S1 thesis, UNY.