J.R. Zhang และ D.A. Sun and W.J. Sun. (2019) Elastoplastic Modelling of Hydro-mechanical Behaviour of Unsaturated Soils. <i>The Geotechnical Engineering Journal of the SEAGS & AGSSEA</i>, <i>50</i>(1), 63-73.J.R. Zhang และ D.A. Sun and W.J. Sun. "Elastoplastic Modelling of Hydro-mechanical Behaviour of Unsaturated Soils". The Geotechnical Engineering Journal of the SEAGS & AGSSEA 50 (2019):63-73.J.R. Zhang และ D.A. Sun and W.J. Sun. Elastoplastic Modelling of Hydro-mechanical Behaviour of Unsaturated Soils. Southeast Asian Geotechnical Society:ม.ป.ท. 2019.