(3GdbUI hLOd GdfhY (B: s (3QDjI JhUjajI hHHdjhLQGajG ddbUI GdbUjQI GdeUQjI (B( 1975(3e (B- 2000(3e(B) / s - (3eMeO eUWai Sdjes ((3GdbGgQI (B: s (3GdOGQ GdeUQjI GddHfGfjI , s, 2006)
Keywords: (3GdGOH GdYQHis; (3GdNOeI GdHHdjhLQGajIs; (3GdSQO GdGOHis; (3GdMOGKI, GdGOHs; (3GdbUI GdbUjQI (B- (3HHdjhLQGajGs