(3JMPjQ GdQGcY hGdSGLO(B: (3ef HOYI RNQaI GdeSGLO (B/ s - (3GHiGdaOGA GdSjO Hf YHOGdebUhOs ([S.N] : (3ecJHI GdSfI ddfTQ hGdJhRjY , s, 1990)
Keywords: (3GdHOY ai GdGSdGes; (3GdHOY GdOjfjIs