(3eMeO aQjO(B:(3QeRGdGNdGU hGdJVMjI(B((3JGQjN eUQGdbhei ef SfI(B1908(3Gdi (B1919) / s - (3YHOGdQMef GdQGaYis ([S.N] : (3TQcI ecJHI eUWai GdHGfi GdMdHi , s, 1987)
Keywords: (3eUQs; (3GdSjGSIs; (3GdJQGLes; (3GdJGQjNs; (3eMeO aQjOs