(3bGehS MJi GdWHi ddLjH (B((3bGehS YQHi(B- (3GfLdjRi(B) / s - (3jhSa MJis; (3GMeO GdNWjHs ([S.N] : (3ecJHI dHfGf , s, 1988)
Keywords: (3GdWHs; (3YQHi(B\(3GfLdjRis; (3GdeYGLes; (3GdeQGLY GdeJNUUIs