Hassani,H and Arshdnejad,S . (2007). STABILITY ANALYSIS OF TUNNEL, PORTAL TRENCH AND UNSTABLE WEDGES OF THE TUNNEL IN THE SHENAGE 47+400 GHAZVIN -RASHT -ANZALI RAILROAD USING STEREONET AND COMPUTER SIMULATION. Sharif Journal of Civil Engineering, vol. 23(No. 39), 31-39.

Hassani,H , and Arshdnejad,S . "STABILITY ANALYSIS OF TUNNEL, PORTAL TRENCH AND UNSTABLE WEDGES OF THE TUNNEL IN THE SHENAGE 47+400 GHAZVIN -RASHT -ANZALI RAILROAD USING STEREONET AND COMPUTER SIMULATION", Sharif Journal of Civil Engineering, vol. 23, No. 39, 2007, 31-39.

Hassani H, Arshdnejad S. (2007). 'STABILITY ANALYSIS OF TUNNEL, PORTAL TRENCH AND UNSTABLE WEDGES OF THE TUNNEL IN THE SHENAGE 47+400 GHAZVIN -RASHT -ANZALI RAILROAD USING STEREONET AND COMPUTER SIMULATION', Sharif Journal of Civil Engineering, vol. 23(No. 39), pp. 31-39.

H Hassani and S Arshdnejad, "STABILITY ANALYSIS OF TUNNEL, PORTAL TRENCH AND UNSTABLE WEDGES OF THE TUNNEL IN THE SHENAGE 47+400 GHAZVIN -RASHT -ANZALI RAILROAD USING STEREONET AND COMPUTER SIMULATION," Sharif Journal of Civil Engineering, vol. 23 No. 39 (2007): 31-39,

Hassani H, Arshdnejad S. STABILITY ANALYSIS OF TUNNEL, PORTAL TRENCH AND UNSTABLE WEDGES OF THE TUNNEL IN THE SHENAGE 47+400 GHAZVIN -RASHT -ANZALI RAILROAD USING STEREONET AND COMPUTER SIMULATION. Sharif Journal of Civil Engineering. 2007;vol. 23(No. 39):31-39 (In Persian).