%0 Journal Article %T Shear strength of an unsaturated loam soil as affected by vetiver and polyacrylamide %A Amiri Khaboushan, Elham %A Emami, Hojat %A محمدرضا مصدقی %A Astaraei, Ali Reza %J Soil and Tillage Research %@ 0167-1987 %D 2019