JUMIATI, Ety; 						NASUTION, Nazaruddin; 						PRANANDA, Dika.
 Reducing Mn Levels from Bore Well Water in Tembung Village by Filtration of Tea Bag Activated Carbon, Zeolite, Silica Sand and Gravel.
<strong>BULETIN FISIKA</strong>, [S.l.], v. 24, n. 2, p. 149 – 153, aug. 2023.
ISSN 2580-9733.
Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/buletinfisika/article/view/97690" target="_new">https://ojs.unud.ac.id/index.php/buletinfisika/article/view/97690</a>&gt;. Date accessed: 04 may 2024.
doi: <a href="https://doi.org/10.24843/BF.2023.V24.i02.p12">https://doi.org/10.24843/BF.2023.V24.i02.p12</a>.