Fifty Problem Solving Strategies Explained, by John Malouff, J.D., Ph.D. (E) http://www.une.edu.au/psychology/staff/malouff/problem.htm
Fifty Problem Solving Strategies Explained, par John Malouff, J.D., Ph.D. (A) http://www.une.edu.au/psychology/staff/malouff/problem.htm