Salimun N, Mohamad H. Investigation of Particle Gradation Effect on Soil-Rock Mixture Using Direct Shear Test . IJIE [Internet]. 2024 Aug. 12 [cited 2026 Mar. 11];16(4):23-30. Available from: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/16197