Goh, D. (1997). Step into the future with nothing: Achievment through self- motivation. Sterling.
Chicago-referens (17:e uppl.)Goh, David. Step into the Future with Nothing: Achievment Through Self- Motivation. New Delhi: Sterling, 1997.
MLA-referens (9:e uppl.)Goh, David. Step into the Future with Nothing: Achievment Through Self- Motivation. Sterling, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.