Sitorus RHS, Wanma GF. The Validity of Electronic Signatures in Electronic Transactions From The Perspective of Regulation Number 71 of 2019. Eduvest [Internet]. 2024Mar.20 [cited 2025Jul.5];4(3):871-9. Available from: http://www.eduvest.greenvest.co.id.submitjurnal.id/index.php/edv/article/view/1081