SIAKA, I M.; 						RUPADEWI, P. A.; 						SUARYA, P..
 BIOAVAILABILITAS LOGAM Fe DAN Ca DALAM TANAH PERTANIAN SERTA KANDUNGAN LOGAMNYA DALAM TANAMAN BAYAM  DENGAN PEMBERIAN PUPUK KANDANG SAPI.
<strong>Jurnal Kimia (Journal of Chemistry)</strong>, [S.l.], p. 180-187, july 2021.
ISSN 2599-2740.
Available at: &lt;<a href="http://103.29.196.112/index.php/jchem/article/view/65163" target="_new">http://103.29.196.112/index.php/jchem/article/view/65163</a>&gt;. Date accessed: 16 dec. 2025.
doi: <a href="https://doi.org/10.24843/JCHEM.2021.v15.i02.p08">https://doi.org/10.24843/JCHEM.2021.v15.i02.p08</a>.