Carr, D. L. Brilliant Assertiveness: What the most assertive people know, do and say (1.). Pearson Education UK.
Lua i Stíl Chicago (17ú heag.)Carr, Dannie Lu. Brilliant Assertiveness: What the Most Assertive People Know, Do and Say. 1. Pearson Education UK.
Lua MLA (8ú heag.)Carr, Dannie Lu. Brilliant Assertiveness: What the Most Assertive People Know, Do and Say. 1. Pearson Education UK.
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