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 Harrischandra, I Putu, I Made Satriya Wibawa, & Nyoman Wendri. " Designing Water Level Control Equipment Using SMS-Based Ultrasonic Sensors." BULETIN FISIKA [Online], 23.2 (2022): 121-129. Web. 4 Sep. 2026