Aldi, Muhammad, Rahmatul Hidayati, Sunardi Sunardi, and Budi Parmono. “Validity of Goods and Services Sale and Purchase Agreements by Online”. Jurnal Cakrawala Hukum 15, no. 2 (August 2, 2024). Accessed January 16, 2025. https://jurnal.unmer.ac.id/index.php/jch/article/view/15082.