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 Iswara, Yudha Tri Dharma, & I Ketut Markeling. " KEKUATAN PEMBUKTIAN SURAT DI BAWAH TANGAN DALAM AKTA PERJANJIAN JUAL-BELI." Kertha Semaya : Journal Ilmu Hukum [Online], 4.1 (2016): 1-13. Web. 31 Aug. 2026