SIMPEN, I Nengah; 						SUARYA, Putu; 						YOGI PURNAMAWATI, Komang.
 PEMANFAATAN BATU PASIR LAUT WARNA HITAM TERAKTIVASI NaOH 4 N DAN TERSALUT Fe2O3 SEBAGAI ADSORBEN ION NITRAT.
<strong>Jurnal Kimia (Journal of Chemistry)</strong>, [S.l.], july 2013.
ISSN 2599-2740.
Available at: &lt;<a href="http://103.29.196.112/index.php/jchem/article/view/5973" target="_new">http://103.29.196.112/index.php/jchem/article/view/5973</a>&gt;. Date accessed: 18 dec. 2025.