Hill, N. (2003). How to sell your way through life: The principles of psychology upon which all master salesmanship is based. How to sell your personal services at top notch prices. Including : a complete analysis of the stupendous achievements of the man who has sold his way into more millions of dollars than any other man who ever lived. Kuala Lumpur: Napoleon Hill Associates (Malaysia) Sdn. Bhd.

Hill, Napoleon. How to Sell Your Way Through Life: The Principles of Psychology Upon Which All Master Salesmanship Is Based. How to Sell Your Personal Services At Top Notch Prices. Including : A Complete Analysis of the Stupendous Achievements of the Man Who Has Sold His Way Into More Millions of Dollars Than Any Other Man Who Ever Lived. Kuala Lumpur: Napoleon Hill Associates (Malaysia) Sdn. Bhd, 2003.

Hill, Napoleon. How to Sell Your Way Through Life: The Principles of Psychology Upon Which All Master Salesmanship Is Based. How to Sell Your Personal Services At Top Notch Prices. Including : A Complete Analysis of the Stupendous Achievements of the Man Who Has Sold His Way Into More Millions of Dollars Than Any Other Man Who Ever Lived. Kuala Lumpur: Napoleon Hill Associates (Malaysia) Sdn. Bhd, 2003.