SIMPEN, I N.; 						NEGARA, I M. S.; 						RATNAYANI, O..
 KARAKTERISTIK FISIKO-KIMIA KATALIS HETEROGEN CaO-BASE DAN PEMANFAATANNYA UNTUK KONVERSI MINYAK GORENG BEKAS  SECARA SINAMBUNG MENJADI BIODIESEL.
<strong>Jurnal Kimia (Journal of Chemistry)</strong>, [S.l.], p. 188-194, july 2021.
ISSN 2599-2740.
Tersedia pada: &lt;<a href="http://103.29.196.112/index.php/jchem/article/view/75660" target="_new">http://103.29.196.112/index.php/jchem/article/view/75660</a>&gt;. Tanggal Akses: 17 dec. 2025
doi: <a href="https://doi.org/10.24843/JCHEM.2021.v15.i02.p09">https://doi.org/10.24843/JCHEM.2021.v15.i02.p09</a>.