K. Ishihara. “Recent Advances in Pile Testing and Diaphragm Wall Constructions in Japan”. Geotechnical Engineering Journal of the SEAGS & AGSSEA 47, no. 4 (October 21, 2024): 4–23. accessed September 11, 2026. https://ph01.tci-thaijo.org/index.php/SEAGS_AGSSEA_Journal/article/view/259162.