Ma arif F, Widodo S, Nugroho MS, Gao Z. Discrete Element Method Approach to Simulate Cracks in Four-Point Flexural Test. U Karst [Internet]. 2023 May 9 [cited 2024 Jul. 22];7(1):135 -. Available from: https://ojs.unik-kediri.ac.id/index.php/ukarst/article/view/4401