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 Lestari, Ni Made Dewi, I Made Alit Karyawan Salain, & Ida Bagus Rai Widiarsa. " KUAT TEKAN BETON GEOPOLIMER MENGGUNAKAN ABU SEKAM PADI." JURNAL SPEKTRAN [Online], 12.1 (2024): 35-41. Web. 6 Sep. 2026