(3GdGYeGd GdcGedI(B: (3eMeO LdGd (B/ s - (3eMeO LdGds ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1987)
Keywords: (3GdGOH GdYQHis; (3GdbUU GdYQHjIs; (3GdbUU GdYQHjI GdbUjQIs; (3GdbUUs