Removal Co(II) Ions in Aqueous Solution using Fe-MCM-41: Penghilangan Ion Co(II) dalam Larutan Berair menggunakan Fe-MCM-41. Stannum [Internet]. 2024 Oct. 31 [cited 2026 Apr. 25];6(2):109-14. Available from: https://www.journal.ubb.ac.id/index.php/stannum/article/view/5481