Khoirunisa, Alfiah, Kartini, and Raihan. “Locked And Tied: Locking Chain And Change Of Problems”. IAIC Transactions on Sustainable Digital Innovation (ITSDI) 3, no. 1 (October 31, 2021): 18–27. Accessed March 29, 2024. https://aptikom-journal.id/itsdi/article/view/500.