LEECH (Thomas), . (2008). How to Prepare Stage and Deliver Winning Presentations. New Delhi: Prentice Hall of India New Delhi.
LEECH (Thomas), . 2008. How to Prepare Stage and Deliver Winning Presentations. New Delhi: Prentice Hall of India New Delhi.
LEECH (Thomas), . How to Prepare Stage and Deliver Winning Presentations. New Delhi: Prentice Hall of India New Delhi. 2008.