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 Pertiwi, D., & Sudiarta, K. (2015). LAYANAN PURNA JUAL PRODUK ELEKTRONIK DENGAN GARANSI. Kertha Semaya : Journal Ilmu Hukum, 4(2). Retrieved from https://ojs.unud.ac.id/index.php/kerthasemaya/article/view/15325