(3VeGf GdYOhGf ai Gdabg GdGSdGei (B/ s - (3eMeO GMeO SQGLs ([S.N] : (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY , s, 1993)
Keywords: (3GdGMcGe GdTQYjIs; (3Gdabg GdGSdGeis