Abd Malik, Ahmad Khairul, et al. “Correlation of Electrical Resistivity Tomography and Geotechnical Field Data for Soil Profile Characterization”. Journal of Sustainable Underground Exploration , vol. 3, no. 1, Aug. 2023, pp. 10-15, https://penerbit.uthm.edu.my/ojs/index.php/j-sue/article/view/13188.