(3JgPjH GdJgPjH (B/s - (3GHf MLQ GdYSbdGfj, CMeO Hf Ydj Hf eMeO,s 773-852 (3g`(B.s; (3YWG , eUWai YHO GdbGOQ (B.s ((3HjQhJ (B:s (3OGQ GdcJH GdYdejI,s, 1994)
Keywords: (3GdMOjKs -- (3GdLQM hGdJYOjds; (3GdMOjKs -- (3JQGLe GdQhGIs