C. Richards Jack. (2012). Tactics for listening: Developing Pack B. More listening. More testing. More effective (Third edition.). Oxford: Oxford University press.

C. Richards Jack. Tactics for Listening: Developing Pack B. More Listening. More Testing. More Effective. Third edition. Oxford: Oxford University press, 2012.

C. Richards Jack. Tactics for Listening: Developing Pack B. More Listening. More Testing. More Effective. Third edition. Oxford: Oxford University press, 2012.