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 Putra Wibawa, I Nyoman Gede, I Wayan Supardi, & I Gusti Agung Putra Adnyana. " PERANCANGAN ALAT UKUR GAS HIDROKARBON (HC) DENGAN MENGGUNAKAN SENSOR MQ-4 BERBASIS MIKROKONTROLER AT89S52." BULETIN FISIKA [Online], 17.1 (2016): 7-13. Web. 30 Aug. 2026