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Sim, E. K., F. R. Harnas, Harianto Rahardjo, Eng Choon Leong, Puay-Yok Tan, Yok-King Fong, و School of Civil and Environmental Engineering. Tree Stability in an Improved Soil to Withstand Wind Loading. 2011.

Sim, E. K., et al. Tree Stability in an Improved Soil to Withstand Wind Loading. 2011.