HAPSARI, N. N.; SAMIK, S.. UTILIZATION OF NA2O/LAPINDO MUD NANOCATALYST IN THE TRANSESTERIFICATION REACTION OF USED COOKING OIL INTO BIODIESEL. Jurnal Kimia (Journal of Chemistry), [S.l.], p. 293-305, july 2025. ISSN 2599-2740. Available at: <http://103.29.196.112/index.php/jchem/article/view/121748>. Date accessed: 16 dec. 2025. doi: https://doi.org/10.24843/JCHEM.2025.v19.i02.p20.