1. The point load strength test;Broch;Int. J. Rock Mech. Min. Sci.,1972
2. The influence of moisture content on the compressive strength of rock;Colback,1965
3. Engineering classification and index properties for intact rock;Deere,1966
4. Brazos river bar: a study in the significance of grain-size parameters;Folk;Sediment. Petrol.,1957
5. Suggested methods for determining the slaking, swelling, porosity, density and related rock index properties;Franklin,1970