“Design and Construction of a Low-Cost Acoustic Measurement Tube for Material Evaluation: Methodology and Structural Validation”. Ciencias de la Ingeniería y Aplicadas 10, no. 1 (January 10, 2026): 16–25. Accessed June 4, 2026. https://investigacion.utc.edu.ec/index.php/ciya/article/view/1229.