Effect of Moisture and Chloride Content on the Direct and Reflected Ground Penetrating Radar Waves Amplitude Ratio in Concrete Slab. Jurnal Teknologi (Sciences & Engineering), [S. l.], v. 74, n. 3, 2015. DOI: 10.11113/jt.v74.4542. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/4542.. Acesso em: 10 apr. 2025.