1. Brady, B.H.G. and Brown, E.T. (1995).Rock mechanic for underground mining, CHAPMAN & HALL.
2. Doug Keckler, Tom Bresnahan and Julie,A. hè bert, GRAPHER TM for windows, Golden Software, Inc.
3. Elwyn, H. King.Rock Tunnels, Tunnel Engineering Handbook, CHAPMAN & HALL.
4. Hoek, E. and Brown, E.T. (1980).Underground excavation in rock, Institution of Mining & Metallurgy.
5. Jeremic, M.L.Ground Mechanics in Hard Rock mining Balkema.