S. Chaiyaput, and M. Sugimoto. “The Boundary Condition of a 3D Continuum Model for a Quasi 2D Plane Strain Condition”. Geotechnical Engineering Journal of the SEAGS & AGSSEA, vol. 52, no. 2, June 2021, pp. 24-30, doi:10.14456/seagj.2021.35.