Cavity and Fracture Detection Using GPR and EM Methods: Comparison with Surface Features of the Rus Formation, KFUPM campus, Saudi Arabia.Published in:Geophysical Research Abstracts, 2019, v. 21, p. 1By:Alam, Kazi;Islam, Mohammad;Karami, Ghozian;Syahputra, M Rika;Prambudi, Ratno;Kaka, SanLinnPublication type:Article