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							SAHARA, Emmy; 						KARTINI, Ni Putu Widyana; 						SIBARANI, James.
 PEMANFAATAN ARANG AKTIF DARI LIMBAH TANAMAN GUMITIR (Tagetes erecta) TERAKTIVASI ASAM FOSFAT SEBAGAI ADSORBEN ION Pb2+ DAN Cu2+ DALAM LARUTAN.
<strong>CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry)</strong>, [S.l.], v. 5, n. 2, p. 67 - 74, dec. 2017.
ISSN 2302-7274.
Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/cakra/article/view/35986" target="_new">https://ojs.unud.ac.id/index.php/cakra/article/view/35986</a>&gt;. Date accessed: 30 aug. 2026.