(3GdbVGA GdOhdj GdeSJYLd (B/s - (3YHO GdgGOj, YHO GdYRjR eNjeQs ((3GdchjJ (B:s (3LGeYI GdchjJ, dLfI GdJCdja hGdJYQjH hGdJQLeI hGdfTQ,s, 1996)
(3HHdjhLQGajI (B: (3U(B. 215-218.s
Keywords: (3GdJMcje GdOhdjs; (3GdbGfhf GdOhdj GdYGes