Birawidha DC, Manaf A, Astuti W, Daulay A, Haryono T, Sari Y, Suprihatin S. ECO FRIENDLY CITRIC ACID-ASSISTED SOL-GEL SYNTHESIS OF HIGH-PURITY NANO SILICA FROM DIENG GEOTHERMAL SLAG: CHARACTERIZATION AND OPTIMIZATION METHOD. IPR [Internet]. 2025May23 [cited 2025Jun.5];8(2):530-9. Available from: https://ipr.unram.ac.id/index.php/ipr/article/view/486