THE EFFECT OF VARIATIONS IN CONCENTRATION OF CONCENTRATED SULFURIC ACID CATALYST ON THE DEGREE OF ETHYL LAURATE ESTERIFICATION RESULTS. Medsains Scientific Journal, [S. l.], v. 6, n. 02, p. 38–42, 2020. Disponível em: http://jurnal.polibara.ac.id/index.php/ojsdata/article/view/91. Acesso em: 15 apr. 2026.