(3GdYed ZjQ GdeTQhY h GKQg Hjf Gdabg GdGSdGej h GdbGfhf GdOhdj GdNGU GdeUQj (B/ s - (3HOQ GdOjf YHOGdefYe Thbjs ([(3O (B. (3e(B] :s [(3O (B. (3f(B] (3,s, 1988)
Keywords: (3GdbGfhf GdOhdj GdYGes