Ulfa SNS, Samik S. REVIEW ARTICLE: UTILIZATION OF ACTIVATED NATURAL ZEOLITE CATALYST IN BIODIESEL SYNTHESIS WITH ESTERIFICATION AND TRANSESTERIFICATION METHOD. UJC [Internet]. 2023 Jan. 31 [cited 2025 Nov. 5];11(3):165-81. Available from: https://ejournal.unesa.ac.id/index.php/unesa-journal-of-chemistry/article/view/47056