DeBono Edward. (2010). Free Mind: Lateral Thinking Approach. Jaico Publishing House.
Chicago-čujuhus (17. p.)DeBono Edward. Free Mind: Lateral Thinking Approach. Ahmedabad: Jaico Publishing House, 2010.
MLA-čujuhus (9. p.)DeBono Edward. Free Mind: Lateral Thinking Approach. Jaico Publishing House, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.