(3KdGKjI GhQjSJ GLGeefhf(B, (3MGedGJ GdbQGHjf GdUGaMGJ (B/ s - (3dhjS YhVs; (3GSNjdhSs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1987)
Keywords: (3GdGOH GdjhfGfis; (3GdGOH GdjhfGfi GdeJQLes