(3YUGajQ GdThc(B: (3eSQMjI TYQjI Yf GdGfJaGVI (B/ s - (3gGfhf gGTe QTjOs ([S.N] : (3OGQ GdeSJbHd GdYQHi , s, 1989)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3adSWjfs