(3GdbGfhf GdOSJhQj(B.s (3GdLRA GdKGfj, s (3GdbSe GdKGfj (B: s (3fXQjI GdOSJhQ (B/ s - (3efPQ GdTGhjs ((3HZOGO (B: s (3eWHYI Tajb, s, 1972)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdOSJhQj h GdeHGOF GdOSJhQjI GdYGeIs