PERMATASARI, Y.; SILALAHI, W. The Validity of Electronic Sales and Purchase Agreements in Indonesian Civil Law: A Law of Obligations Perspective: english. Journal of Business, Management, and Social Studies, [S. l.], v. 5, n. 2, p. 85–92, 2025. DOI: 10.53748/jbms.v5i2.122. Disponível em: https://jbms.site/index.php/JBMS/article/view/122. Acesso em: 28 jun. 2025.