== خلاصه ==https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://samt.ac.ir/fa/book/1068/%25D8%25AC%25D9%2588%25D8%25A7%25D9%2585%25D8%25B9-%25D8%25AD%25D8%25AF%25DB%258C%25D8%25AB%25D9%2589-%25D8%25A7%25D9%2587%25D9%2584-%25D8%25B3%25D9%2586%25D8%25AA&ved=2ahUKEwi60rjjpoWNAxVmVKQEHZ64DdAQFnoECCEQAQ&usg=AOvVaw2sBi-23x3WoBdMQQ9nm_NX
