K. Yamashita, S. Wakai, J. Hamada, and T. Tanikawa. “Pile Group Interaction Based on Field Monitoring and Load Tests”. Geotechnical Engineering Journal of the SEAGS & AGSSEA 48, no. 3 (September 30, 2017): 47–57. accessed April 16, 2025. https://ph01.tci-thaijo.org/index.php/SEAGS_AGSSEA_Journal/article/view/259065.