(3GdJcGad GdELJeGYj aj GdESdGe (B/ s - (3YHO GdYGd, CMeO YHOGdYGds ((3GdbGgQI (B: s (3GdTQcI GdYQHjI, s, 1997)
Keywords: (3GdCMcGe GdSdWGfjI(B. s; (3Gdabg GdESdGej(B. s; (3GdJcGad(B. s; (3Cgd GdPeI(B. s