1. Standard method for grain-size analysis of soils;American Society for Testing and Materials,1964
2. Standard specifications for sieves for testing purposes;American Society for Testing and Materials,1964
3. Standard test method for particle-size analysis of soils;American Society for Testing and Materials,1985
4. Soil Physics;Baver,1963
5. Mechanical and hydraulic resistance relations in crust-topped soils;Bedaiwy;Catena,2008