Daryono, Arif Sutikno. “The Effectiveness of the Use of Belajar.Id Form Applications in the Preparation of Digital-Based Numeracy Questions for Mathematics Subject Educators at Smp Negeri 15 Surakarta”. Zien Journal of Social Sciences and Humanities 14 (November 8, 2022): 16–23. Accessed November 26, 2024. https://zienjournals.com/index.php/zjssh/article/view/2687.