I Gusti Ngurah Eka Partama. Reformulation of Concrete Compressive Strength Graphics With N-Type Hammer Test to Improve the Accuracy of Cube and Cylinder Test Results. JP [Internet]. 2025 May 15 [cited 2025 Jun. 30];20(1):1-10. Available from: //jurnalpermukiman.pu.go.id/index.php/JP/article/view/554