(3GdWjhQ GdeGFjI ai GdYQGb hGdhWf GdYQHi (B((3gOjI ef GdGOjH YHOGdaJGM GdLed(B) / s - (3Tajb egOis ([S.N] : (3OGQ GdQTjO , s, 1982)
Keywords: (3GdWjhQs; (3GdWjhQ GdeGFjIs