Warning: file_get_contents(https://ojs.journalbusiness.my/ojs.php): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /var/www/ojs.unud.ac.id_backup/lib/pkp/includes/functions.inc.php on line 4 Adhi Putra, I. (2017). PRODUCTION OF BIODIESEL FROM WASTE COOKING OIL BY TRANSESTERIFICATION REACTION USING CaO/NATURAL ZEOLITE CATALYSTS. CAKRA KIMIA (Indonesian E-Journal Of Applied Chemistry), 5(2), 51 - 57. Retrieved from https://ojs.unud.ac.id/index.php/cakra/article/view/35984