Hofmann, R. A four step approach to evaluating problem solving applied to problems with geometric content.
Chicago-referens (17:e uppl.)Hofmann, Roseanne. A Four Step Approach to Evaluating Problem Solving Applied to Problems with Geometric Content.
MLA-referens (8:e uppl.)Hofmann, Roseanne. A Four Step Approach to Evaluating Problem Solving Applied to Problems with Geometric Content.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.