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 Fathurrahmaniah, Fathurrahmaniah, Muarif Islamiah, & Nita Rahmaniya. " PEMANFAATAN CANGKANG KERANG HIJAU (PERNA VIRIDIS) UNTUK MENINGKATKAN pH MATA AIR OI KUNDE." CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) [Online], 12.1 (2024): 49 - 54. Web. 6 Sep. 2026