Wirawan, Teguh, Ishak Wiradikara Az, & Noor Hindryawati.
" Adsorption Of Methylene Blue Using Active Charcoal From Empty Fruit Bunch (EFB)." <em>JURNAL KIMIA MULAWARMAN</em> [Online], 21.1 (2023): 8-16. Web.  6 Oct. 2024