(3MehQGHj edc HGHd hYUQg (B/ s - (3cdfZd , ghQSJ s; (3TQja , ZGRj s ((3HZOGO (B: s (3OGQ GdTDhf GdKbGajI GdYGeI , s, 1987)
Keywords: (3GdYQGb GdbOje s