(3GdGghGA (B/ s - (3LjQhe, GfWhGf Qhfis; (3Sdje MOGO (B((3eJQLe(B)s ([S.N] : (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY , s, 1987)
Keywords: (3Yde GdfaSs; (3GdOhGaY GdfaSjIs; (3GdGfaYGdGJ GdfaSjIs