(3GQSWh OYhI ddadSaI(B((3HQhJQ jHJbhS(B) (3cJGH eabhO GQSWh (B/ s - (3YHOGdZaGQ ecGhis ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1987)
Keywords: (3GdadSaIs; (3adSaI GQSWhs; (3GdadGSaIGdjhfGfjhfs; (3GdadSaI GdjhfGfjIs; (3GdadGSaIs