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 Risma Prahandari, I., & Dwijayanthi, P. (2023). PRE-PROJECT SELLING: PERSPEKTIF PERLINDUNGAN KONSUMEN. Kertha Semaya : Journal Ilmu Hukum, 11(9), 2140-2149. doi:10.24843/KS.2023.v11.i09.p12