(3GdUfOhb Gdbhei GdjghOi (B/ s - (3djf , hhdJQ s; (3hhdJQ djfs; (3GhQi (B, (3OjaRs; (3QVhGf ehdhis ([S.N] : (3eDSSI GdOQGSGJ GdadSWjfjI , s, 1990)
Keywords: (3GdGMhGd GdGLJeGYjIs; (3GdUgjhfjIs; (3GdjghOs