1. Application of geomechanical classification to predict the convergence of coal mine galleries and to design their supports;Abad,1984
2. Application of CSIR and NGI classification systems along tunnel no. 3 at Al-Dela Descant, Asir Province, Saudi Arabia;Al-Harthi,1993
3. The description and classification of weathered rocks for engineering purposes;Anon;Q. J. Eng. Geol.,1995
4. Diagnosis of the transition from rock to soil in a granodiorite;Arel;J. Geotech. Geoenviron. Eng. ASCE,2004
5. Rock Foundations: Technical Engineering and Design Guides as Adapted from the US Army Corps of Engineers, No. 16;ASCE,1996