(3GdJYOOjI GdSjGSjI (B-(3OQGSI (B/ s - (3GMeO KGHJs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1990)
Keywords: (3GdeLJeYs; (3GdhWf GdYQHis; (3GdSjGSIs; (3GdGMRGHs; (3GdJYOOjIs