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 Yuni Purnama Sari, A.A. Made, & Suatra Putrawan. " PERLINDUNGAN HUKUM TERHADAP HAK KONSUMEN TRANSAKSI E-COMMERCE DALAM HAL TERJADINYA WANPRESTASI." Kertha Semaya : Journal Ilmu Hukum [Online], 9.3 (2021): 446-457. Web. 28 Aug. 2026