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 Pramana, Putu, Kencanawati, Cok Istri Putri Kusuma, AND Sugita, I Ketut Gede. " Pengaruh Perbandingan Fraksi Volume Getah Pinus Dan Epoxy Terhadap Biodegradasi Material Akustik" Jurnal Mettek: Jurnal Ilmiah Nasional dalam Bidang Ilmu Teknik Mesin [Online], Volume 8 Number 2 (30 November 2022)