Ulfindrayani, Ika Fitri, Nurani Ikhlas, Qurrota A’yuni, Nurull Fanani, Binaria Lumban Gaol, and Devi Lestari. “Pengaruh Ekstraksi SiO2 Dari Lumpur Lapindo Terhadap Daya Adsorpsinya Pada Larutan Metil Orange”. CHEESA: Chemical Engineering Research Articles 2, no. 2 (December 18, 2019): 50–55. Accessed April 25, 2025. https://e-journal.unipma.ac.id/index.php/cheesa/article/view/5108.