(3GdGSQGA hGdeYQGL (B/ s - (3eMeO eJhdi GdTYQGhis ([S.N] : (3ecJHI GdJQGK GdGSdGei , s, 1990)
Keywords: (3GdSjQI GdfHhjIs; (3GdGSQGA hGdeYQGLs