(3Gdaf hGdMde hGdaYd (B/ s - (3LHQG GHQGgje LHQGs ([S.N] : (3GdeDSSI GdYQHjI ddOQGSGJ hGdfTQ , s, 1988)
Keywords: (3GdGOH GdYQHis; (3GdebGdGJs; (3GdJCdjas