Ulfa, S. N. S. and Samik, S. (2023) “REVIEW ARTICLE: UTILIZATION OF ACTIVATED NATURAL ZEOLITE CATALYST IN BIODIESEL SYNTHESIS WITH ESTERIFICATION AND TRANSESTERIFICATION METHOD”, Unesa Journal of Chemistry, 11(3), pp. 165–181. doi: 10.26740/ujc.v11n3.p165-181.