Correlation of Ultrasonic Pulse Velocity with Porosity and Compressive Strength of Mortar with Limestone for Building Quality Assessment. U Karst [Internet]. 2022 Nov. 29 [cited 2025 Dec. 8];6(2):190-202. Available from: https://ojs.unik-kediri.ac.id/index.php/ukarst/article/view/3508