(3GdcJGH GdeUfa (B/ s - (3EHf CHj TjHI, CHh HcQ YHO Gddg Hf eMeOs; (3GdYeQhj, YeQ Hf ZQGegs ((3GdQjGV (B:s (3OGQ YGde GdcJH,s, 1988)
(3GdbSe GdGhd ef GdLRA GdQGHY (B[ (3GdLRA GdeabhO(B]s
Keywords: (3GdESdGe(B.s; (3GdMOjK GdfHhj(B.s