(3eUQ (B.. (3Edi Cjf ? (B: s (3bQGAGJ hNhGWQ aj GdOSJhQ GdOGFe (B1971 / s - (3eMeO YHO GdSdGe GdRjGJs ((3GdbGgQI(B: s (3OGQ GdeSJbHd GdYQHj, s, 1986)
(3jhLO EQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOSJhQis