Saputra, Tomy, and Eko Setiawan. “Information Security System Using Blockchain Technology Implementation”. Jurnal Riset Multidisiplin dan Inovasi Teknologi 1, no. 01 (May 1, 2023): 26–30. Accessed October 2, 2025. https://risetpress.com/index.php/jimat/article/view/162.