(3OQGjOf hGdTYQ GdeSQMi(B: (3GdcdGSjcjI GdLOjOI ai GdeSQM (B/ s - (3eLOi hgHIs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1994)
Keywords: (3GdGOH GdYQHis; (3GdTYQ GdeSQMis