(3bQGAI LOjOI ai GdTYQ GdYQHi GdMOjK (B/ s - (3SYO OYHjSs ([S.N] : (3GdUOQ dNOeGJ GdWHGYI , s, 1990)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3GdYUQ GdMOjKs; (3JGQjN hfbOs