@incollection{, BAFE10D319D8BD7B7BD54FFA5770D589 , author={{M. A.Bashar} and {}}, journal={{Global Journal of Researches in Engineering}}, journal={{GJRE}}2249-45960975-586110.34257/gjre, address={Cambridge, United States}, publisher={Global Journals Organisation}1431922 } @book{b0, , title={{Soil and rock, building stones, geotextiles}} , author={{ Astm }} 04.08 , year={1989} } @book{b1, , title={{Some physical properties of sands and gravels with reference to their use in filtratin}} , author={{ AHazen }} , year={1892} Massachusetts State Board of Health , note={24th Annual report} } @book{b2, , title={{Engineering properties of soils and their measurements}} , author={{ EBJosheph }} , year={1992} , publisher={McGraw-Hill, Inc} , note={Fourth edition} }