D., Tjandra, Indarto, ., and Soemitro, R.A.A. “The Effects of Water Content Variation on Adhesion Factor of Pile Foundation in Expansive Soil”. Civil Engineering Dimension 15, no. 2 (September 12, 2013): 114-119. Accessed October 4, 2024. https://ced.petra.ac.id/index.php/civ/article/view/18762.