وب سایت شخصی مهندس رامین ملک قاسمی

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_perssn/configuration/15-s/qos-perssn-15-s-book.pdf

https://www.cisco.com/c/en/us/td/docs/ios/qos/configuration/guide/12_2sr/qos_12_2sr_book/per_session_qos.html