(3GdeONd dOQGSIGdabg GdGSdGei(B: (3fTGJg(B, (3eQGMd JWhQg(B, (3GYdGeg(B, (3eOGQSg(B, (3ePGgHg (B/ s - (3Thbi YHOg GdSGgis ([S.N] : (3ecJHI GdfgVI GdeUQjI , s, 1989)
Keywords: (3Gdabg GdGSdGeis; (3ePGgH Gdabg GdGSdGeis