“Determination of Soil Strength Using 2D Geoelectric Methods and Direct Shear Test (Case Study in Istana Tidar Regency Housing – Jember)”. Asian Journal of Applied Sciences 5, no. 2 (May 5, 2017). Accessed December 26, 2025. https://ajouronline.com/index.php/AJAS/article/view/4755.