Nascimento da Silva, C.C. et al. 2023. The hard rock aquifer in semiarid: analysis of models based on geological-structural data and airborne and terrestrial geophysical methods. Águas Subterrâneas. 37, 2 (May 2023), e-30197. DOI:https://doi.org/10.14295/ras.v37i2.30197.