(3cJGH GSeGA Njd GdYQH haQSGfgG (B/ s - (3GHf GdGYQGHi (B: (3GHh YHOGddg eMeO Hf RjGOs ([S.N] : (3ecJHI GdfgVI GdeUQjI , s, 1984)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3OhGhjf hbUGFOs; (3GdNjd ai GdGOHs; (3JGQjN hfbOs