Birawidha, David C, Azwar Manaf, Widi Astuti, Amru Daulay, Tri Haryono, Yuliana Sari, and Suprihatin Suprihatin. 2025. “ECO FRIENDLY CITRIC ACID-ASSISTED SOL-GEL SYNTHESIS OF HIGH-PURITY NANO SILICA FROM DIENG GEOTHERMAL SLAG: CHARACTERIZATION AND OPTIMIZATION METHOD”. Indonesian Physical Review 8 (2):530-39. https://doi.org/10.29303/ipr.v8i2.486.