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 Mardika, I Nengah, Hendra Wijaksana, & Made Sucipta. " Studi Experimental Pembuatan Karbon Aktif Dengan Variasi Laju Alir Massa Air Terhadap Massa Penyimpanan Biogas." Teknik Desain Mekanika [Online], 10.3 (2022): n. pag. Web. 3 Sep. 2026