Wardiyati, Siti, and E Sukirman. 2013. “PENGARUH PENAMBAHAN KARBON AKTIF PADA STRUKTUR KRISTAL DAN MAGNETISASI PARTIKEL NANO Fe3O4[Addition Effect of Active Carbon on Crystal Structure and Magnetization of Fe3O4 Nanoparticles]”. Jurnal Metalurgi 28 (1):9-18. https://doi.org/10.14203/metalurgi.v28i1.241.