(3chQjG h GdYhdeI (B/s - (3eOMJ CjhH s ((3GdbGgQI (B:s (3eQcR GdOQGSGJ h GdHMhK GdnGSjhjI ,cdjI GdGbJUGO h GdYhe GdSjGSjI , LGeYI GdbGgQI (B,s, 2002)
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdEfLdjRjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHi s; (3GdYhdeI s