“EFEK DOPING TERHADAP AKTIVITAS FOTOKATALIS Na2Ti6O13 DALAM MENDEGRADASI LIMBAH CAIR METHYLENE BLUE PADA INDUSTRI TEKSTIL”. PROCEEDINGS OF NATIONAL COLLOQUIUM RESEARCH AND COMMUNITY SERVICE 2 (October 10, 2018). Accessed May 23, 2026. https://www.journal.ubb.ac.id/index.php/snppm/article/view/584.