@article{paperid:1048620,
author = {Salari, Pouya and Lashkaripour, Gholam Reza and Ghafoori, Mohammad},
title = {Presentation of Empirical Equations for Estimating Internal Friction Angle of SP and SC Soils in Mashhad, Iran Using Standard Penetration and Direct ShearTests and Comparison With Previous Equations},
journal = {International Journal of Geography and Geology},
year = {2015},
volume = {4},
number = {5},
month = {May},
issn = {2306-9872},
pages = {89--95},
			numpages = {6},
keywords = {Internal friction angle; SP soil; SC soil; Direct shear test; SPT test; Local equations},
}