AYU WULANDARI D. KAPASITAS ADSORPSI SILIKA ABU SEKAM PADI TERMODIFIKASI ARGININ UNTUK ADSORPSI ION LOGAM Cr(VI) ADSORPSION CAPACITY OF RICE HUSK ASH SILICA OF ARGININE MODIFIED FOR ADSORPTION Cr(VI) METAL ION. UJC [Internet]. 2015 Jan. 31 [cited 2025 Nov. 18];4(1). Available from: https://ejournal.unesa.ac.id/index.php/unesa-journal-of-chemistry/article/view/10853