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 Aminin, Diana, Ade Oktasari, & Fitria Wijayanti. " PEMANFAATAN CANGKANG BUAH KARET (Hevea brasiliensis) SEBAGAI ADSORBEN LOGAM BERAT TIMBAL (Pb)." CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) [Online], 9.1 (2021): n. pag. Web. 5 Sep. 2026