Dignen, B. (2007). Fifty ways to improve your presentation skills in english without too much effort. Orient Blackswan.
Chicago Stili AlıntıDignen, Bob. Fifty Ways to Improve Your Presentation Skills in English Without Too Much Effort. Hyderabad: Orient Blackswan, 2007.
MLA AlıntıDignen, Bob. Fifty Ways to Improve Your Presentation Skills in English Without Too Much Effort. Orient Blackswan, 2007.
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