Koesnarpadi, Soerja, AND 		Tarigan, Daniel.
" KINETIKA ADSORPSI Cr(VI) MENGGUNAKAN ADSORBEN MAGNETIT (Fe 3 O 4 ) DAN MAGNETIT TERLAPIS ASAM HUMAT (Fe 3 O 4 /AH)" <em>PROSIDING SEMINAR NASIONAL KIMIA</em> [Online], (26 April 2016)