G. Russo และ L. Di Girolamo and G. Marone. (2020) BEM and FEM Approaches to the Analysis of Negative Skin Friction on Piles. <i>The Geotechnical Engineering Journal of the SEAGS & AGSSEA</i>, <i>51</i>(2), pp 103 110.G. Russo และ L. Di Girolamo and G. Marone. "BEM and FEM Approaches to the Analysis of Negative Skin Friction on Piles". The Geotechnical Engineering Journal of the SEAGS & AGSSEA 51 (2020):pp 103 110.G. Russo และ L. Di Girolamo and G. Marone. BEM and FEM Approaches to the Analysis of Negative Skin Friction on Piles. Southeast Asian Geotechnical Society:ม.ป.ท. 2020.