(3GdHfGA GdOQGei ai GdQGOjh hGdJdjaRjhf (B/ s - (3YOdi SjO eMeO QVGs ([S.N] : (3OGQ GdacQ GdYQHi , s, 1988)
Keywords: (3GdGOH GdYQHis; (3GdeSQMs; (3JGQjN hfbOs