Soto-Caban, S., and E. Law. “Using Resistivity Measurements to Determine Anisotropy in Soil and Weathered Rock”. Engineering, Technology & Applied Science Research 3, no. 4 (August 11, 2013): 483–487. Accessed July 18, 2024. https://etasr.com/index.php/ETASR/article/view/368.