4Naji N Khoury,Ph D Robert Brooks,Ph D P E ASCEFellow,Charbel N Khoury.Environmental influenceson the engineering behavior of unsaturated undisturbedsubgrade soils:effect of soil suctions on resilient mod-ulus[J].International Journal of Geotechnical Engi-neering,2009,3(2):303-311.
5Naji Khoury,Robert Brooks,Musharraf M Zaman,Charbel N Khoury.Variations of Resilient Modulus ofSubgrade Soils with Post compaction Moisture Contents.Transportation Research Record[J].Journal of the Trans-portation Research Board,2009,2101:72-81.
6Sanjay Kumar Shukla.A time-dependent expressionfor modulus of subgrade reaction of saturated cohesivefoundation soils[J].International Journal of Geotech-nical Engineering,2008,2(4):435-439.