PURWANINGSIH, Y. et al.
 AMIDATION CINNAMIC ACID BY DIETHYLAMINE WITH BORIC ACID AS CATALYST USING ULTRASONIC IRRADIATION.
<strong>Jurnal Kimia (Journal of Chemistry)</strong>, [S.l.], p. 60-65, jan. 2022.
ISSN 2599-2740.
Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/jchem/article/view/69855" target="_new">https://ojs.unud.ac.id/index.php/jchem/article/view/69855</a>&gt;. Date accessed: 06 may 2024.
doi: <a href="https://doi.org/10.24843/JCHEM.2022.v16.i01.p08">https://doi.org/10.24843/JCHEM.2022.v16.i01.p08</a>.